Nordson A7AA Reference guide

Model A7AA Air Assisted
Airless Gun
Customer Product Manual
Part 108 046C
NORDSON CORPORATION AMHERST, OHIO USA
OBSOLETE

2000 Nordson Corporation
All rights reserved
108 046C
Issued 1/00
Manual 4-20
Nordson Corporation welcomes requests for information, comments and inquiries about its products. General
information about Nordson can be found on the Internet using the following address: http://www.nordson.com.
Address all correspondence to:
Nordson Corporation
Attn: Customer Service
555 Jackson Street
Amherst, OH 44001
Notice
This is a Nordson Corporation publication which is protected by copyright. Original copyright date 1990. No part of
this document may be photocopied, reproduced, or translated to another language without the prior written consent
of Nordson Corporation. The information contained in this publication is subject to change without notice.
Trademarks
Blue Box, Can Works, Century, CleanSleeve, CleanSpray, Control Coat, Cross-Cut, Easy Coat, Econo-Coat, Excel
2000, Flow Sentry, FoamMix, Horizon, Hot Shot, Isocoil, Isocore, Iso-Flo, MEG, Nordson, the Nordson logo,
Package of Values, PowderGrid, Pro-Flo, PRX, RBX, Ready Coat, Rhino, SCF, Select Coat, Select Cure, Shur-Lok,
Smart-Coat, System Sentry, Tribomatic, Versa-Coat, Versa-Screen, and Versa-Spray
are registered trademarks of Nordson Corporation.
Accu-Jet, Auto-Flo, CanNeck, Clean Coat, CPX, EasyClean, Ink-Dot, OptiMix, PowderGrid, Pulse-Spray, Sure
Coat, Swirlcoat and Walcom are trademarks of Nordson Corporation.
Viton is a registered trademark of E.I. DuPont de Nemours & Co.

Table of Contents
i
2000 Nordson Corporation
All rights reserved 108 046C
Issued 1/00 Manual 4-20
Table of Contents
1. Safety 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Qualified Personnel 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Intended Use 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Regulations and Approvals 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Personal Safety 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
High-Pressure Fluids 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fire Safety 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Halogenated Hydrocarbon Solvent Hazards 5. . . . . . . . . . . . . . . .
Action in the Event of a Malfunction 5. . . . . . . . . . . . . . . . . . . . . . . . .
Disposal 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2. Description 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Theory of Operation 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3. Installation 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Quick-Exhaust Valve 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4. Operation 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shutdown 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5. Maintenance 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6. Troubleshooting 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting Chart 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7. Repair 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gun Disassembly 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gun Assembly 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8. Parts 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Using the Illustrated Parts List 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A7AA Airless Gun 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Seal Service Kit 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ball Tip With Seat Service Kit 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recommended Spare Parts 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table of Contents
ii
2000 Nordson Corporation
All rights reserved
108 046C
Issued 1/00
Manual 4-20
9. Options 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Nozzles and Air Cap 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Equipment 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10. Specifications 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dimensions 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Weight 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pressures 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Model A7AA Air Assisted Airless Gun
1
2000 Nordson Corporation
All rights reserved 108 046C
Issued 1/00 Manual 4-20
Model A7AA Air Assisted Airless Gun
Read and follow these safety instructions. Task- and equipment-specific
warnings, cautions, and instructions are included in equipment
documentation where appropriate.
Make sure all equipment documentation, including these instructions, is
accessible to persons operating or servicing equipment.
Equipment owners are responsible for making sure that Nordson
equipment is installed, operated, and serviced by qualified personnel.
Qualified personnel are those employees or contractors who are trained
to safely perform their assigned tasks. They are familiar with all relevant
safety rules and regulations and are physically capable of performing
their assigned tasks.
Use of Nordson equipment in ways other than those described in the
documentation supplied with the equipment may result in injury to
persons or damage to property.
Some examples of unintended use of equipment include
using incompatible materials
making unauthorized modifications
removing or bypassing safety guards or interlocks
using incompatible or damaged parts
using unapproved auxiliary equipment
operating equipment in excess of maximum ratings
Make sure all equipment is rated and approved for the environment in
which it is used. Any approvals obtained for Nordson equipment will be
voided if instructions for installation, operation, and service are not
followed.
1. Safety
Qualified Personnel
Intended Use
Regulations and Approvals

Model A7AA Air Assisted Airless Gun
2
2000 Nordson Corporation
All rights reserved
108 046C
Issued 1/00
Manual 4-20
To prevent injury follow these instructions.
Do not operate or service equipment unless you are qualified.
Do not operate equipment unless safety guards, doors, or covers are
intact and automatic interlocks are operating properly. Do not bypass
or disarm any safety devices.
Keep clear of moving equipment. Before adjusting or servicing
moving equipment, shut off the power supply and wait until the
equipment comes to a complete stop. Lock out power and secure the
equipment to prevent unexpected movement.
Relieve (bleed off) hydraulic and pneumatic pressure before adjusting
or servicing pressurized systems or components. Disconnect, lock
out, and tag switches before servicing electrical equipment.
While operating manual spray guns, make sure you are grounded.
Wear electrically conductive gloves or a grounding strap connected to
the gun handle or other true earth ground. Do not wear or carry
metallic objects such as jewelry or tools.
If you receive even a slight electrical shock, shut down all electrical or
electrostatic equipment immediately. Do not restart the equipment
until the problem has been identified and corrected.
Obtain and read Material Safety Data Sheets (MSDS) for all materials
used. Follow the manufacturer’s instructions for safe handling and
use of materials, and use recommended personal protection devices.
Make sure the spray area is adequately ventilated.
To prevent injury, be aware of less-obvious dangers in the workplace
that often cannot be completely eliminated, such as hot surfaces,
sharp edges, energized electrical circuits, and moving parts that
cannot be enclosed or otherwise guarded for practical reasons.
Personal Safety

Model A7AA Air Assisted Airless Gun
3
2000 Nordson Corporation
All rights reserved 108 046C
Issued 1/00 Manual 4-20
High-Pressure Fluids
High-pressure fluids, unless they are safely contained, are extremely
hazardous. Always relieve fluid pressure before adjusting or servicing
high pressure equipment. A jet of high-pressure fluid can cut like a knife
and cause serious bodily injury, amputation, or death. Fluids penetrating
the skin can also cause toxic poisoning.
If you suffer a fluid injection injury, seek medical care immediately. If
possible, provide a copy of the MSDS for the injected fluid to the health
care provider.
The National Spray Equipment Manufacturers Association has created a
wallet card that you should carry when you are operating high-pressure
spray equipment. These cards are supplied with your equipment. The
following is the text of this card:
WARNING: Any injury caused by high pressure liquid can be
serious. If you are injured or even suspect an injury:
Go to an emergency room immediately.
Tell the doctor that you suspect an injection injury.
Show him this card.
Tell him what kind of material you were spraying.
MEDICAL ALERT—AIRLESS SPRAY WOUNDS: NOTE TO PHYSICIAN
Injection in the skin is a serious traumatic injury. It is important to treat
the injury surgically as soon as possible. Do not delay treatment to
research toxicity. Toxicity is a concern with some exotic coatings injected
directly into the bloodstream.
Consultation with a plastic surgeon or a reconstructive hand surgeon may
be advisable.
The seriousness of the wound depends on where the injury is on the
body, whether the substance hit something on its way in and deflected
causing more damage, and many other variables including skin
microflora residing in the paint or gun which are blasted into the wound.
If the injected paint contains acrylic latex and titanium dioxide that
damage the tissue’s resistance to infection, bacterial growth will flourish.
The treatment that doctors recommend for an injection injury to the hand
includes immediate decompression of the closed vascular compartments
of the hand to release the underlying tissue distended by the injected
paint, judicious wound debridement, and immediate antibiotic treatment.

Model A7AA Air Assisted Airless Gun
4
2000 Nordson Corporation
All rights reserved
108 046C
Issued 1/00
Manual 4-20
To avoid a fire or explosion, follow these instructions.
Ground all conductive equipment in the spray area. Use only
grounded air and fluid hoses. Check equipment and workpiece
grounding devices regularly. Resistance to ground must not exceed
one megohm.
Shut down all equipment immediately if you notice static sparking or
arcing. Do not restart the equipment until the cause has been
identified and corrected.
Do not smoke, weld, grind, or use open flames where flammable
materials are being used or stored.
Do not heat materials to temperatures above those recommended by
the manufacturer. Make sure heat monitoring and limiting devices are
working properly.
Provide adequate ventilation to prevent dangerous concentrations of
volatile particles or vapors. Refer to local codes or your material
MSDS for guidance.
Do not disconnect live electrical circuits while working with flammable
materials. Shut off power at a disconnect switch first to prevent
sparking.
Know where emergency stop buttons, shutoff valves, and fire
extinguishers are located. If a fire starts in a spray booth,
immediately shut off the spray system and exhaust fans.
Shut off electrostatic power and ground the charging system before
adjusting, cleaning, or repairing electrostatic equipment.
Clean, maintain, test, and repair equipment according to the
instructions in your equipment documentation.
Use only replacement parts that are designed for use with original
equipment. Contact your Nordson representative for parts
information and advice.
Fire Safety

Model A7AA Air Assisted Airless Gun
5
2000 Nordson Corporation
All rights reserved 108 046C
Issued 1/00 Manual 4-20
Halogenated Hydrocarbon Solvent Hazards
Do not use halogenated hydrocarbon solvents in a pressurized system
that contains aluminum components. Under pressure, these solvents
can react with aluminum and explode, causing injury, death, or property
damage. Halogenated hydrocarbon solvents contain one or more of the
following elements:
Element Symbol Prefix
Fluorine F “Fluoro-”
Chlorine Cl “Chloro-”
Bromine Br “Bromo-”
Iodine I “Iodo-”
Check your material MSDS or contact your material supplier for more
information. If you must use halogenated hydrocarbon solvents, contact
your Nordson representative for information about compatible Nordson
components.
If a system or any equipment in a system malfunctions, shut off the
system immediately and perform the following steps:
Disconnect and lock out system electrical power. Close hydraulic and
pneumatic shutoff valves and relieve pressures.
Identify the reason for the malfunction and correct it before restarting
the system.
Dispose of equipment and materials used in operation and servicing
according to local codes.
Action in the Event of a
Malfunction
Disposal

Model A7AA Air Assisted Airless Gun
6
2000 Nordson Corporation
All rights reserved
108 046C
Issued 1/00
Manual 4-20
See Figure 1. The model A7AA gun is a compact, high-cycle, air
assisted airless spray gun. The A7AA is designed to spray solvent or
waterborne coatings, and may be used in a wide variety of applications.
The wetted parts of the A7AA gun are constructed of stainless steel for
corrosion resistance. The A7AA can be used for dead-end or circulating
applications. It is also suitable for use in heated systems up to 92 C
(200 F) or ambient fluid systems.
Due to its fast trigger cycle capability, the A7AA may be used for ultra
high speed applications as well as common product finishing. Its simple
design and rugged construction provide for long service life and easy
field maintenance. In the event of a gun failure, several repair kits are
provided to reduce downtime.
0420001A
Fig. 1 Model A7AA Air Assisted Airless Gun
2. Description

Model A7AA Air Assisted Airless Gun
7
2000 Nordson Corporation
All rights reserved 108 046C
Issued 1/00 Manual 4-20
In normal operation, the air is turned on just before fluid exits the nozzle
and is turned off just after the fluid stops flowing. This overlap is
designed to eliminate gun spitting.
See Figure 2. When the gun is triggered, the entering air (2) lifts the
piston assembly (1), and allows the packing cartridge (3) and the ball
tip (4) to rise. The rising piston assembly also opens a path for the assist
air, entering at (8). The coating material enters at (7) and passes through
the opening in the seat (5). The coating material exits the nozzle (6),
where it is partially atomized. As the coating material exits the nozzle,
the material stream is further atomized by the assist air which flows
around the nozzle. When the air pressure is removed, the ball tip returns
to the seat and stops the flow of coating material and assist air.
The air piston can be adjusted to provide an air assist on/off function, or
the piston may be set for continuous bleed. This is commonly used on
high speed stitching applications where the cycle time is extremely short.
If faster or slower gun actuation is desired, the packing cartridge
adjuster (9) may be adjusted in or out.
0420002A
8 7
2
6
9
1 3 54
Fig. 2 A7AA Gun
1. Piston assembly
2. Air entrance
3. Packing cartridge
4. Ball tip
5. Seat
6. Nozzle
7. Coating entrance
8. Assist air entrance
9. Packing cartridge adjuster
Theory of Operation

Model A7AA Air Assisted Airless Gun
8
2000 Nordson Corporation
All rights reserved
108 046C
Issued 1/00
Manual 4-20
See Figure 3.
NOTE: The A7AA can be mounted to a 12.7 mm (0.5 in.) round bar. The
gun or the mounting bar should be mounted in such a way as to allow for
easy removal for service. Slide the mounting bar through the mounting
hole on the gun body (1), then tighten the square-head screw (2).
CAUTION: Do not over tighten fluid fittings. Over tightening
may cause damage to the gun body.
1.Connect a 1/2-20 JIC coupled airless fluid hose to the 1/2-20 JIC fluid
fittings (4). Material will flow in either direction.
2.Connect a pneumatic hose to carry clean, regulated air to the 1/8NPT
street elbow (3) located directly beneath the gun nameplate.
3.Connect an electro-pneumatic solenoid with a dump port via an air
hose to the gun at the 1/8NPT street elbow.
NOTE: It is not recommended that long air hoses be used between the
gun and the solenoid. Long hoses cause a pneumatic delay, producing
slow gun on/off cycling, spitting, and premature wear of the ball and seat.
Three to six meters (ten to twenty feet) of hose is normal.
3. Installation

Model A7AA Air Assisted Airless Gun
9
2000 Nordson Corporation
All rights reserved 108 046C
Issued 1/00 Manual 4-20
0420003A
23
1
4
Fig. 3 Installation of A7AA Guns
1. Gun body
2. Square head screw 3. Street elbow 4. Fluid fittings

Model A7AA Air Assisted Airless Gun
10
2000 Nordson Corporation
All rights reserved
108 046C
Issued 1/00
Manual 4-20
The A7AA gun is normally used as part of a larger spraying system. A
typical installation is show in Figure 4.
0420004A
1
9
3 4 678
10
13 12
11
5
MAIN AIR
ASSIST AIR
2
Fig. 4 Typical A7AA Installation
1. Pump
2. Ball valves
3. Heaters
4. Fluid Filter
5. Actuating air
6. Solenoid
7. Regulator
8. Filter
9. Regulator
10. A7AA gun
11. Circulating valve
12. Drain off
13. Coating
3. Installation (contd)

Model A7AA Air Assisted Airless Gun
11
2000 Nordson Corporation
All rights reserved 108 046C
Issued 1/00 Manual 4-20
For high speed gun triggering (stitching) or for actuating the A7AA over
long distances, use an optional quick-exhaust valve. Refer to the
Options section for ordering information. The A7AA gun may also be
installed so that several guns can be fired by the same solenoid. This
requires using a quick-exhaust valve and two air sources.
When using this option, the actuation air must be constant but may be
from any convenient air source. It is also important to use a small ID air
line (1/8inch or less) for the trigger air from the solenoid to the quick
exhaust valve. An installation using this option is shown in Figure 5.
0420005A
2
1
3
Fig. 5 Optional A7AA Installation
1. Trigger air from solenoid 2. Gun actuation air 3. Quick exhaust valves
Quick-Exhaust Valve

Model A7AA Air Assisted Airless Gun
12
2000 Nordson Corporation
All rights reserved
108 046C
Issued 1/00
Manual 4-20
WARNING: Allow only qualified personnel to perform the
following tasks. Follow the safety instructions in this document
and all other related documentation.
1. If necessary, configure the controller per its manual.
2. Set the material pressure to the recommended operating level per
your Nordson representative.
3. Turn on air and material flow.
4. Check for leaks at the air and material connections.
To shutdown the system:
1. Turn off power to the controller.
2. Turn off air and material to the system.
WARNING: System or material pressurized. Relieve pressure.
Failure to observe this warning may result in serious injury or
death.
WARNING: Wear protective clothing, safety goggles, and
approved respiratory protection. Failure to observe this warning
may result in serious injury.
Periodically perform the following:
1. Check the air lines and the material supply hose for leaks, kinks or
damage. Replace lines and hoses when necessary.
2. Make sure the A7AA gun is mounted securely.
3. Make sure the air supply filters are clean and dry.
4. Check for leaks at the connections of air and material.
4. Operation
Shutdown
5. Maintenance

Model A7AA Air Assisted Airless Gun
13
2000 Nordson Corporation
All rights reserved 108 046C
Issued 1/00 Manual 4-20
WARNING: Allow only qualified personnel to perform the
following tasks. Follow the safety instructions in this document
and all other related documentation.
This section contains troubleshooting procedures. These procedures
cover only the most common problems that you may encounter. If you
cannot solve the problem with the information given here, contact your
local Nordson representative for help.
The following table lists possible A7AA malfunctions.
Problem Possible Cause Corrective Action
1. Leaking around the
nozzle or nozzle
retaining nut
Dirty or damaged nozzle seal or
sealing surfaces Relieve pressure to the system. Remove nozzle retaining nut. Clean or
replace nozzle, nozzle seal, or ball and
seat.
2. Leaking through
exhaust holes in gun
body directly behind
fittings
Worn packing cartridge Replace packing cartridge and seal kit.
3. Spitting Dirty or worn ball tip or seat Clean or replace ball tip and seat.
Long trigger air lines Mount solenoid on gun or as close as
possible. Use optional dump valves or
air release valves. Refer to the
Options
section.
Air trapped in the fluid system Circulate fluid for several minutes to
purge air from the system.
Air overlap adjustment is incorrectly
adjusted Adjust packing cartridge adjuster.
4. ON/OFF cycle response
poor or non-existent Air piston assembly worn or out of adjustment Adjust or replace air piston assembly.
Low air pressure to air solenoid Increase the air pressure. The air
pressure should be between
2.76–4.14 bar (40–60 psi).
Long trigger air lines Mount the solenoid on the gun or as
close as possible.
High fluid pressure Reduce the fluid pressure at the pump.
The maximum pressure is 117 bar
(1700 psi).
6. Troubleshooting
Troubleshooting Chart

Model A7AA Air Assisted Airless Gun
14
2000 Nordson Corporation
All rights reserved
108 046C
Issued 1/00
Manual 4-20
WARNING: Allow only qualified personnel to perform the
following tasks. Follow the safety instructions in this document
and all other related documentation.
The repair section consists of disassembly and assembly of the gun.
Disassemble the gun as follows:
1.If possible, flush the gun with clean solvent before removing the gun
from the system.
2.Remove both fluid and air pressure to the gun.
3.See Figure 6. Loosen the square head screw (14). If the position of
the gun in relation to the material being coated is critical, the gun may
also be removed by removing two fillister head screws (9). This
allows the gun to be removed from the mounting block (13).
4.Remove the four screws (1).
5.Lift the air cylinder cover (2) and spring (3) from the air cylinder
housing (12).
6.Using a screwdriver, remove the packing cartridge adjuster (4).
Remove the air piston (7) from the air cylinder housing (12).
7.Remove the four screws (26).
8.Separate the gun body (16) from the air cylinder housing (12).
Remove the seat holder (25).
9.Remove the ball seat retainer (23), O-rings (19, 24) and seat (22)
from the seat holder (25).
10.Push the packing cartridge (20) and ball tip (22) from the gun
body(16).
11.Remove the ball tip (22) from the packing cartridge (20).
Reverse the disassembly procedure but replace all O-rings. Coat all
O-rings with lubricant and cover all fitting threads with tape before
installing.
7. Repair
Gun Disassembly
Gun Assembly

Model A7AA Air Assisted Airless Gun
15
2000 Nordson Corporation
All rights reserved 108 046C
Issued 1/00 Manual 4-20
To order parts, call the Nordson Customer Service Center or your local
Nordson representative. Use this five-column parts list, and the
accompanying illustration, to describe and locate parts correctly.
Numbers in the Item column correspond to numbers that identify parts in
illustrations following each parts list. The code NS (not shown) indicates
that a listed part is not illustrated. A dash (—) is used when the part
number applies to all parts in the illustration.
The six-digit number in the Part column is the Nordson Corporation part
number. A series of dashes in this column (- - - - - -) means the part
cannot be ordered separately.
The Description column gives the part name, as well as its dimensions
and other characteristics when appropriate. Indentions show the
relationships between assemblies, subassemblies, and parts.
Item Part Description Quantity Note
—000 000 Assembly 1
1000 000 Subassembly 2 A
2000 000  Part 1
If you order the assembly, items 1 and 2 will be included.
If you order item 1, item 2 will be included.
If you order item 2, you will receive item 2 only.
The number in the Quantity column is the quantity required per unit,
assembly, or subassembly. The code AR (As Required) is used if the
part number is a bulk item ordered in quantities or if the quantity per
assembly depends on the product version or model.
Letters in the Note column refer to notes at the end of each parts list.
Notes contain important information about usage and ordering. Special
attention should be given to notes.
8. Parts
Using the Illustrated Parts
List

Model A7AA Air Assisted Airless Gun
16
2000 Nordson Corporation
All rights reserved
108 046C
Issued 1/00
Manual 4-20
See Figure 6.
Item Part Description Quantity Note
—103 754 Gun, A7AA, stainless steel, pounds 1
1981 138 Screw, oval, 10-32 x 1.000, slotted, zinc 4
2103 735 Cover, air cylinder 1
3241 176 Spring, compression, 1.240 x 1.093 OD x 0.094 in. 1
4103 725 Adjuster, packing, cartridge 1
5940 063 O-ring, Viton, 0.125 x 0.250 x 0.063 in. 1
6941 210 O-ring, Viton, 1.063 x 1.250 x 0.094 in. 1
7243 975 Piston, air 1
8940 125 O-ring, Viton, 0.375 x 0.50 x 0.063 in. 1
9981 127 Screw, fillister, 10-32 x 2.00, slotted, zinc 2
10 983 120 Washer, lock, e, split, #10, stainless, nickel 2
11 971 403 Elbow, male, 1/4tube x 1/8NPT, brass 2
12 103 752 Housing, air cylinder 1
13 153 158 Block, mounting 1
14 981 405 Screw, square, set, 3/8-16 x 0.750 cup, zinc 1
15 103 724 Gasket, 1/75 square x 0.015 thick 1
16 103 753 Body, gun, stainless steel, A7AA 1
17 972 177 Elbow, male, 37, 1/2-20 x 1/4, stainless steel 2
18 117 312 Gasket, 1.75 square x 0.062 thick 1
19 940 150 O-ring, Hotpaint, 0.563 x 0.688 x 0.063 in. 2
20 153 090 Cartridge packing 1
21 940 134 O-ring, Viton, 0.438 x 0.563 x 0.063 in. 1
22 103 722 Tip, ball, with seat, A7AA 1
23 103 743 Retainer, ball seat 1
24 940 100 O-ring, Hotpaint, , 0.250 x 0.375 x 0.063 in. 1
25 103 750 Holder, seat, stainless steel 1
26 981 294 Screw, oval, 10-32 x 2.250, slotted, zinc 4
27 103 738 Ring, retaining 1
NS 901 905 Brush 1
NS 973 415 Plug, pipe, socket, standard, 1/4stainless steel 1
NS 152 999 Wrench 1
NS 901 911Wrench, adjustable, module 2
NS: Not Shown
A7AA Airless Gun