AnsaldoSTS F-42 Owner's manual

1000 Technology Drive, Pittsburgh, PA 15219
645 Russell Street, Batesburg, SC 29006
SM 5924
Copyright© 2009 SM 5924, Rev. 1
Ansaldo STS USA, Inc. June 2009
F-42 DC/DC CONVERTER
ASTS USA Part No.
N16920401
 Installation
 Operation
 Maintenance

Notices
SM 5924, Rev. 1, June 2009 i
Proprietary Notice
This document and its contents are the property of Ansaldo STS USA,
Inc. (formerly known as Union Switch & Signal Inc., and hereinafter
referred to as "ASTS USA"). This document is furnished to you on the
following conditions: 1.) That no proprietary or intellectual property
right or interest of ASTS USA is given or waived in supplying this
document and its contents to you; and, 2.) That this document and its
contents are not to be used or treated in any manner inconsistent with
the rights of ASTS USA, or to its detriment, and are not to be copied,
reproduced, disclosed or transferred to others, or improperly disposed
of without the prior written consent of ASTS USA.
Important Notice
ASTS USA constantly strives to improve our products and keep our customers apprised of
changes in technology. Following the recommendations contained in the attached service manual
will provide our customers with optimum operational reliability. The data contained herein
purports solely to describe the product, and does not create any warranties.
Within the scope of the attached manual, it is impossible to take into account every eventuality
that may arise with technical equipment in service. Please consult an ASTS USA local sales
representative in the event of any irregularities with our product.
ASTS USA expressly disclaims liability resulting from any improper handling or use of our
equipment, even if these instructions contain no specific indication in this respect. We strongly
recommend that only approved ASTS USA spare parts are used as replacements.

Revision History
ii SM 5924, Rev. 1, June 2009
Revision History
REV. DATE NATURE OF REVISION
0 May, 1981 Initial Issue
1 June, 2009 Revised value of C3 in Figure 4–1
Copyright© 2009, Ansaldo STS USA, Inc.
1000 Technology Drive, Pittsburgh, PA USA 15219-3120
645 Russell Street, Batesburg, SC 29006
www.ansaldo-sts.com
All rights reserved.

Table of Contents
SM 5924, Rev. 1, June 2009 iii
Table of Contents
1 DESCRIPTION...................................................................................................................................1-1
1.1 Electrical....................................................................................................................................1-1
2 PRINCIPLES OF OPERATION .........................................................................................................2-1
2.1 Input Filter .................................................................................................................................2-1
2.2 Over Voltage Protection............................................................................................................2-1
2.3 Switching Mode Pre-Regulator .................................................................................................2-1
2.4 Power Converter .......................................................................................................................2-1
3 INSTALLATION .................................................................................................................................3-1
3.1 Mounting ...................................................................................................................................3-1
3.2 Electrical Connections ..............................................................................................................3-1
3.3 Calibration ...............................................................................................................................3-1
4 MAINTENANCE AND TROUBLESHOOTING ..................................................................................4-1
4.1 General .....................................................................................................................................4-1
4.2 Converter Regulator Section.....................................................................................................4-1
4.3 CONVERTER OUTPUT SECTION ..........................................................................................4-3
4.4 CBI – Electronic Control Board (N451120-4101) .....................................................................4-3
4.5 C33-OVER VOLTAGE CONTROL BOARD (N451120-4301) ..................................................4-4
4.5.1 Checks ..........................................................................................................................4-4
4.5.2 Optional Surge Protection Modification ........................................................................4-5
4.6 CB2 STARTING CONTROL BOARD (N451120-3002) ............................................................4-5
5 PARTS LIST ......................................................................................................................................5-1
6 RAIL TEAM AND TECHNICAL SUPPORT ......................................................................................6-1

Table of Contents
iv SM 5924, Rev. 1, June 2009
List of Figures
Figure 3–1. Plug Connector Pinning ...................................................................................................3-1
Figure 4–1. F-42 DC/DC Converter Schematic Diagram ....................................................................4-2
Figure 4–2. CB3 Voltage Control Board Surge Protection Modification.................................................4-6
Figure 5–1. F-42 DC/DC Converter Parts Location.............................................................................5-7
List of Tables
Table 5–1. N451033-2901 Parts List .................................................................................................5-1
Table 5–2. N451033-2902 Parts List .................................................................................................5-3
Table 5–3. N451033-2903 Parts List .................................................................................................5-3
Table 5–4. N451033-2904 Parts List .................................................................................................5-4

DESCRIPTION
SM 5924, Rev. 1, June 2009 1-1
1 DESCRIPTION
The F-42 DC/DC Converter is a completely transistorized power supply for use in train control
systems. The converter basically consists of an electronically controlled pre-regulator and an
inverter with rectified and filtered outputs. The unit is designed for use as a DC source of 32V at
up to 7.5 amps on locomotive and car equipment for cab signals and/or intermittent inductive
train stops.
1.1 Electrical
• Operating Temperature
-40° F to +160° F
• Input Voltage
60 VDC to 80 VDC. However, a drop to 45 VDC when the unit is operating will not damage
the unit. The input wires must be twisted pairs.
• Output Voltage
32 VDC ±5% at 0 to 7.5 amp load, over the full ambient temperature range. The output shall
not be less than 28V if the input voltage drops to 45V during a transient condition.
The converter is capable of starting with a lamp load of four 15 watt, 34 volt signal lamps in
multiple, and a resistance load as required to bring the total load to 240 watts.
• Overload
The converter is capable of supplying 11.25 amps for ten minutes without damage over a
temperature range of -40° F to 140° F.
• Ripple (output)
The ac ripple shall not exceed 2.5%.
• Overload Protection
The 32 VDC output is not fused but is self protected. A short circuit across this winding will
stop the magnetic oscillator which can remain shorted indefinitely without damage to the
unit. To restart after a short circuit has been removed; the input circuit should be opened and
then closed after a delay of a few seconds. The input is fused at 10A. The unit is designed to
handle 150% load for ten minutes without damage.

DESCRIPTION
1-2 SM 5924, Rev. 1, June 2009
• Overvoltage Protection
Overvoltage protection is provided by a crowbar circuit comprised of SCR-1 and printed
circuit board CB3.
The input voltage trip point is controlled by diode Dl which triggers the SCR-1 gate with
input voltages between 95V and 105V and will blow fuse Fl. The crowbar circuit is
immediately reset by the opened circuit. Replacement of fuse F1 should restore operation of
the unit.
Similar protection is provided across the pre-regulator output capacitor C3 to protect against
a malfunction of the input circuit. The trip point is controlled by diode D4 between 40.8V
and 45.2V and prevents excessive voltage being applied to the output circuits.
• Transient Voltage
The converter input is designed to withstand a surge voltage of 20,000V for 5 micro seconds
from line to ground, and a 3000V, 60 Hz dielectric test at 1 milliampere maximum for 1
minute as follows:
a. Input terminals shorted to chassis.
b. Output terminals shorted to chassis.
c. Input terminals shorted to output terminals.
A diode is placed across the input circuit to prevent a reverse polarity application and also to
suppress inductive transients that occur on the battery line when the battery is disconnected.

PRINCIPLES OF OPERATION
SM 5924, Rev. 1, June 2009 2-1
2 PRINCIPLES OF OPERATION
As an aid in understanding the theory of operation, refer to the schematic diagram shown in
Figure 4–1.
2.1 Input Filter
Power is supplied through a filter consisting of inductors L1, and L2, and capacitors C1 and C2.
Reverse polarity and inductive transient protection is provided by diode Dl. This circuitry
removes the steep wave front surges.
2.2 Over Voltage Protection
SCR-1 and circuit board CB3 monitor the input voltage appearing across capacitor C2 and the
pre-regulator voltage across capacitor C3. The circuit is immune to steep wave front surges of
short duration, but will respond to a sustained high voltage of many milliseconds duration.
2.3 Switching Mode Pre-Regulator
The main components of this circuitry are the transistors Q1 and Q2 diode D2, Reactive
Transformer T1, output capacitor C3’ and electronic circuit board CB1. CB1 senses the voltage
across C3 and controls the gate (Q1 and Q2) to regulate the output voltage. CB1 also senses the
current flowing through resistor R5 and current-limits the output by also controlling the gate. A
disconnect is provided through pins 5 and 6 of connector P3 (on CB3) to make the circuit
inoperative if circuit board CB3 is not connected to protect against over voltage. The pre-
regulator can be separated from the output converter by disconnecting connector TP7-1 for test
purposes.
2.4 Power Converter
The power for this circuitry is obtained from the pre-regulated voltage developed across
capacitor C3. The switching bridge transistors Q4, Q5, Q6, and Q7 are controlled by magnetic
oscillator T2 which operates at approximately 400 Hz. The bridge is connected to the load
through an isolating transformer T3. The starting circuit is shown as C°B2 which connects
resistors R5 and R6 to -DC to permit starting with a lamp load. The resistors are automatically
disconnected from -DC when the voltage across capacitor C3 reaches a pre-determined voltage.
Initially capacitor C1 is discharged, therefore, when the voltage across capacitor C3 begins to
rise at turn-on, transistor Q1 turns on, then transistor Q2 follows when the emitter of Q1 reaches
the Zener voltage of D2. This allows the voltage across C3 to reach about half its final voltage
before the converter is permitted to start under full load. Capacitor C1 charges steadily toward
the C3 value and turn off occurs when the base of Q1 is driven negatively to approximately the
Zener voltage of D2. On time is controlled by the values of C1, R1, and R2 and is purposely
made about twice the normal starting time.

PRINCIPLES OF OPERATION
2-2 SM 5924, Rev. 1, June 2009

INSTALLATION
SM 5924, Rev. 1, June 2009 3-1
3 INSTALLATION
3.1 Mounting
The converter can be mounted either horizontally or vertically on 7-3/8" x 8" centers with four 3/8"
bolts.
3.2 Electrical Connections
Electrical connections are made to a plug connector mounted on the converter. Connecting cables
should be twisted pairs to minimize pick-up between the input and output circuitry. The pinning
for the connectors is shown in Figure 3–1.
D
A
C
B
1
2
3
4
VIEW OF PLUG CONNECTOR
FOR -2901 UNIT
VIEW OF PLUG CONNECTOR
FOR -2904 UNIT
+60 TO +80VDC INPUT
+60 TO +80VDC INPUT
B- INPUT
B- INPUT
+32VDC, 7.5 AMP OUT
+32VDC, 7.5 AMP OUT
B- OUTPUT
B- OUTPUT
UG0106 .0045. 00
Figure 3–1. Plug Connector Pinning
3.3 Calibration
The converter should be calibrated at room temperature (+77°F). Calibration rheostat R15 is
located on control board CB1. The unit must be opened to gain access to R15.
1. Place an output load of 4 amperes across the output terminals P4-C and P4-D.
2. Apply 70 VDC power to the input leads P4-A and P4-B.
3. Attach voltmeter leads across PA-C and-P4-D and adjust R15 for a 32V output.
The unit should be calibrated for proper output after any component or board replacement.

INSTALLATION
3-2 SM 5924, Rev. 1, June 2009

PARTS LIST
SM 5924, Rev. 1, June 2009 4-1
4 MAINTENANCE AND TROUBLESHOOTING
4.1 General
Maintenance consists of an occasional check of the output voltage. If no output voltage is
indicated, check the input circuit for a blown fuse (Fl, 10 amp slow-blow). To calibrate the
output voltage, refer to Section 3.3. If improper output voltage or no output voltage is obtainable,
troubleshoot the converter by following the steps in the Sections that follow. The schematic is
shown in Figure 4–1. F-42 DC/DC Converter Schematic Diagram is shown in Figure 4–1.
4.2 Converter Regulator Section
1. Disconnect terminal TP7-1 located between transistor Q4 emitter and capacitor C3. This
separates the pre-regulator from the converter output section.
2. Place a DC voltmeter (0-50V) across the terminals of C3 (tie point TP6-4 and collector of
Q5) and a 0-100 VDC variable power supply (approximately 1 amp capacity) across the +
and - input terminals of connector P4.
3. Slowly increase the voltage from OV and observe that the output voltage is rising with the
input voltage. At approximately 38V input, adjust the control pot R15 of CB1 for a 32V
output.
NOTE
If a 32V output cannot be obtained, the cause may be due to faulty
printed circuit boards CB1 or CB3 or components mounted on the
chassis. Transistors Q1, Q2, and Q3, should be checked for short
circuits. See checkout procedures for printed circuit boards CB1
and CB3 in Sections 4.4 and 4.5.
If the requirements in Steps 1 to 3 are met, proceed with Step 4.
4. Readjust the voltage from OV, as indicated in Step 3, and observe that the output voltage
does not rise above 32V with the input range from 0V to 45V. The input current should be
approximately 0.1 amps at this point.
5. Gradually increase the input voltage to +80V and observe that the output voltage remains at
32V. The input current should be approximately 0.1 amps at this point. The current will vary
slightly with component variations.

4-2 SM 5924, Rev. 1, June 2009
Figure 4–1. F-42 DC/DC Converter Schematic Diagram

PARTS LIST
SM 5924, Rev. 1, June 2009 4-3
6. Place a scope (dc operation) across the base and emitter of Q1. Observe that not less than 1V
and not more than 2V reverse bias is being applied during the off time of Q1. The bias
circuit, consisting of diode D3 and leads 1S and 2S of transformer Tl, must be operational
before loads can be applied to the converter. The bias voltage should vary between 1V and
2V over the voltage range of 40 to 80 volts.
7. If all tests for the pre-regulator section are acceptable, remove all test equipment and the
power supply from the pre-regulator section circuits and proceed to check out the output
section in paragraph Section 4.3.
8. If the foregoing requirements are not met, proceed to check out boards CB1 and CB3 (pre-
regulator section) in accordance with Sections 4.4 and 4.5.
4.3 CONVERTER OUTPUT SECTION
1. Disconnect terminal TP7-1 (as indicated in Step 1 of Section 4.2). This separates the pre-
regulator section from the output section.
2. Connect a variable do power supply (approximately1 amp, 50 VDC maximum capacity)
across tie point TP7-1 and the DC input terminal or between the emitter of Q4 and the
collector of Q5.
3. Place a scope across the + lS and 2S leads of the out-put transformer T3 (the AC input
terminals of rectifier BR1).
4. Slowly increase the input voltage from 0V to 10V and observe that the output waveform
across +1S and 2S is a symmetrical square wave without spikes. The input current should not
exceed 0.2 amp at the 10 VDC input level.
5. If Step 4 is satisfactory, increase the input voltage to 32V. The DC output voltage should be
approximately 33.2V and the input current approximately 0.520 amp.
6. If the preceding requirements are not met, proceed to Section 4.6 and check out CB2
accordingly.
7. If both sections of the power supply meet test specifications, connect terminal TP7-1 and re-
calibrate the unit according to the calibration paragraph (Section 3.3).
Anytime a board is replaced, the unit must be re-calibrated.
Boards found to be faulty, should be returned to ASTS USA for adjustment and repair.
4.4 CBI – Electronic Control Board (N451120-4101)
The function of this control board (Pre-regulator Section) is to sense the pre-regulated voltage and
to trigger the input gate as required to hold regulation. Q1 controls the gate (through external

4-4 SM 5924, Rev. 1, June 2009
circuitry) and is triggered ON and OFF as the voltage across C3 rises and falls. A current
limiting function is also provided to limit starting transients.
1. Inspect all soldered joints.
2. Attach a variable DC power supply to terminals 7 (+) and 4 (-). The maximum voltage
required should not exceed 35 Volts, and the current should not exceed 0.1 amp.
3. Place a 0-5 volt DC voltmeter across terminals 3 (+) and 4 (-)
4. Adjust the input voltage slowly to 32V and observe that the input current is less than 0.060
amps Current in excess of 0.060 amps may indicate a shorted component.
5. With the input voltage held at 32 volts, slowly rotate pot R15 until a point is reached which
switches the voltmeter ON and OFF. This switching point must fall within the range of R15.
6. Failure to meet this test is an indication that one or more components are faulty or the IC
(Integrated Circuit ua 723) is inoperable.
7. Perform the following steps to check out the IC.
a. The IC reference voltage, pin 4 (+) to output pin 4 (-) should fall between 6.8 and 7.5
volts. A high impedance DC voltmeter or a scope should be used for this measurement.
b. The IC input at the switch point, pin 2 (+) to pin 4 (-), should be approximately the same
value as the reference voltage. Use a high impedance voltmeter or scope for this check.
c. If Steps (a) and (b) are acceptable, and Dl is of proper value, failure to switch may
indicate a shorted output. In this case, the voltage output at pin 6 will remain at
approximately 12 volts under all conditions, and a constant voltage will appear across R1.
An open output would result in a constant OV output.
8. Current limiting - the components on the control board involved with this function are
resistors R7, R8, R9, R10, and R11, and diode D3. When attached to R5 through pins 5 and
6, the in-rush current will be limited to approximately 18amperes upon starting the inverter.
A check of component values, location, and inspection of soldered joints will insure proper
operation of this circuitry. A memory scope with probes placed across R3 is necessary to
determine the exact current limiting point.
9. If the foregoing tests for CB1 are not satisfactory, replace with an operable board.
4.5 C33-OVER VOLTAGE CONTROL BOARD (N451120-4301)
4.5.1 Checks
1. Check the following Zener diode voltages and component values. (Pre-regulated Section)
2. For Dl, use pins 4(+) and 2(-). The Zener voltage at 0.020 amperes should fall between 95V
and 105V (across D1 only).

PARTS LIST
SM 5924, Rev. 1, June 2009 4-5
3. For D4, use pins 1(+) and 2(-). The Zener voltage at 0.020 amperes should fall between
40.8V and 45.2V (across D4 only).
4. If board CBC does not meet the specified requirements, replace with a board in operating
condition.
4.5.2 Optional Surge Protection Modification
F-42 units manufactured prior to 1975 (serial numbers lower than XX75XX) may experience
unusual fuse blowing problems when exposed to surge conditions. The optional modification
described below can sometimes alleviate or reduce the number of fuses blown in this situation.
Refer to Figure 4–2 for orientation with these wiring changes.
1. The lead from P3 to pin 2 (CB3) to TP6-2 should be moved so that it goes directly from P3,
pin 2 to SCR1 cathode. This lead should be a black wire and should be twisted together with
a green wire that runs from P3, pin 3 (CB3) to SCR1 Gate.
2. The wire that goes from TP6-2 to SCR1 cathode should be moved so that it goes from TP6-2
to Dl anode.
3. Change resistor R2 from 82 ohms to 180 ohms, 1/2 watt.
4. Change resistor R3 from 200 ohms to 430 ohms, 1/2 watt.
4.6 CB2 STARTING CONTROL BOARD (N451120-3002)
Check the Zener diode voltage. Operational tests can be performed by observing the ON and
OFF operation of Q2 which, during the starting cycle, connects the 130 ohm and 62 ohm starting
resistors to DC (output pin 1).
If board CB2 does not meet test specifications, replace with a board in operating condition.

4-6 SM 5924, Rev. 1, June 2009
* ∞ = Twisted Pair
Figure 4–2. CB3 Voltage Control Board Surge Protection Modification

PARTS LIST
SM 5924, Rev. 1, June 2009 5-1
5 PARTS LIST
The parts for the F-42 DC/DC converter are listed in Table 5–1, Table 5–2and Table 5–3. The
tables are keyed to Figure 5–1.
Table 5–1. N451033-2901 Parts List
ITEM NO. DESCRIPTION PART NO.
15 TRANSFORMER,REACTOR N436560
20 TRANSFORMER, OUTPUT N436561
25 SCR-10-32X3/4 FLH SS J5252740112
30 WASHER,10 PLATE SST J4751200110
35 WSHR-SST LOCK NO 10 J4751210109
40 NUT,10-32 HEX SST J4802110105
45 TRANSFORMER,DRIVER N4510390403
55 SCREW,6-32X1-1/4 J525099
60 WSHR-SST PLATE NO 6 J4751200108
65 WASHER,SST LOCK NO 6 J4751210107
70 COIL,0.25 OHM N435088
75 BRACKET M4511204801
80 WSHR-#5 PL FL STEEL J475175
85 BUSHING M4510342001
90 SCREW-3/8X4-1/2 CAP J5073490172
95 WASHER, 3/8 SPR.STL. J4751380113
100 BD F42 STARTER CIR N4511203002
105 BOARD,ELECTRONIC CI N4511204101
110 PCB,CROWBAR<CB3> F42 N4511204301
115 SCR-SST 6-32X5/16PAN J5072980105
165 TERM-INSUL 1417-7-12 J731227
170 TERM-10 SHKPKF LCKG J730070
175 STRIP-KULKA MARKER J725808
180 INSULATION M4511712401
185 TRANSISTOR,PNP,16A,140V,2N6031,TO-3 J7313980032
190 TRANSISTOR,NPN SI 2N5050 J7313980031
195 NUT-1/4-28 HEX J480225
200 SCR-SST6X1/2 SLFTPG J5073010108
205 SOCKET,XSTR TO 3 J725477
210 SCR-4-40X3/4 FLAT SS J5252760112
215 SOCKET,XSTR TO 66 J725476
220 SCR-SST 4-40X1/2 PAN J5072970108
225 WSHR-SST LOCK NO 4 J4751210105
230 NUT-NO4-40 SST HEX J4802110102
235 SCR,400V,20A(RMS) MIN,STUD MOUNT J7261500047
240 RECTIFIER,BRIDGE J7261500029
245 STAND-OFF M4511205701
250 WSHR-SST LOCK NO 8 J4751210108
255 NUT-NO8-32 SST HEX J4802110104
260 RESISTOR,400 OHMS 25 WATT J7355190098
270 RESISTOR,.045 OHM 50 WATT J7355190100
275 BLOCK-TERM.,699ST-10 J776638
280 RESISTOR,50 OHMS 25 WATT J7355190099
285 RESISTOR,150 OHMS 25 WATT J7355190102
290 SCREW,4-40X1/4 PAN SS J5072970104
295 DIODE,RECTIFIER,12A,600V,DO-4 J723958
300 CAPACITOR,1000 MFD 150V J706732
305 CAPACITOR,2000 MFD 50 VDC J702078

5-2 SM 5924, Rev. 1, June 2009
ITEM NO. DESCRIPTION PART NO.
310 CAPACITOR,4000 MFD J701059
315 BRKT CAPAC MOUNT J705089
320 BRKT CAPAC MOUNT J705090
325 SCREW,10-32X1/2 FL HD J052091
330 CAPACITOR,0.47 MFD J706152
335 HOLDER,FUSE HPF HPC J071890
340 FUSE,10A., 250V J710137
345 SCR-SST 8-32X1/2 PAN J5072950108
350 CONNECTOR,MS3102E J709214
355 GASKET,3102A 24 CONN J470057
360 SCR-SST 6-32X1/2 PAN J5072980108
365 TRANSISTOR,2N1558 GER PNP J731301
370 INSERT,10/32 HELICOIL J792630
375 RESISTOR,1.8 OHM 3-1/4 WATT J7355190097
380 CONNECTOR,MS3106E 24 22S J709218
385 DIODE,200V,1A,1N4003,AXIAL J723555
390 RESISTOR,15 OHMS 1 WATT J722631
395 RESISTOR,24 OHMS 2 WATT J723417
400 CAP-CAPACITOR J709201
405 CAP-CAPACITOR J709202
410 TERM-RING TONGUE J731458
415 CONN-PLUG 6 TERM J709174
420 CONNECTOR,PLUG 9 TERMINAL J706768
425 TERMINAL,FEMALE 1189 TL J731355
430 SCREW,6-32X3/4 FIL HD SS J522161
435 RECPT-FASTON PIDG J726219
440 RESISTOR,1.5K OHM 25 WATT J7355190101
445 MYLAR-POLYEST FLM SH A772090
450 SCR-6-32X7/16 PAN HD J5072980107
455 COMPONENT,SILICONE RUBBER J041620
465 WASHER,3/8" STEEL PL J4751320114
475 W-12 SPEC M-258-30 A0450170009
480 W 16 PVC RED M258-30 A0455250006
481 W 16 PVC BLK M258-30 A0455250007
485 NAME PLATE M4511084201
490 SCR-2X1/4IN PARKER J052648
495 GASKET,CORD A470066
500 SCREW,10-32X9/16 FIL HD J522151
505 TAB-QUICK CONNECT J792667
510 COMPOUND-BONDING J041637
515 RECEPTACLE,TIN PL BRASS J723923
520 DIODE-RECT, 12A, 200V, 1N3891R J7261500110
530 RING M4511204501
535 RADIATOR N4510332902
540 RADIATOR N4510332903
545 SCR-8-32X7/8 PAN HD J5072950114
550 BAG-FOOD NON-VENTED J055609
555 SCR-8-32X7/16 FLH SS J5253010107
560 RBR EXTD CHAN X-396 A075114
565 WIRE-#14 AWG,ETFE,WHITE A0458580009
570 W 18 PVC WHT M258-30 A0455070007
590 CLIP-ADHSVE BK-3/8 D J703336
610 TERM.,PRE INSUL DIA.G J730046
615 TERM,RING,1/4" STUD,22-16AWG,300V J730041
620 NUT,10-32 HEX STEEL J048172
630 TUBING A774201
635 TAG-SLEEVE,1/4"-0.50",WHITE J7928222027
645 CABLE TIE, SELF LOCKING J703310