The Test Set,fire Control System, cataloged under National Stock Number 4920-00-588-3873, is classified within Federal Supply Class 4920 (Aircraft Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. The manufacturer of record is Lockheed Martin Corporation Div Rotary and Mission Systems. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4920-00-588-3873 |
| Primary Part Number | 6632400 |
| Item Name | Test Set,fire Control System |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Lockheed Martin Corporation Div Rotary and Mission Systems |
| Status | ACTIVE |
| Length | 16.000 INCHES NOMINAL IN |
| AC Voltage Rating | 425.0 VOLTS NOMINAL LOCATION NOT OTHERWISE SPECIFIED |
| Major Components | TEST PANEL,30 PIN; TRANSIT CASE |
| Relationship to Similar Equipment | TEST SET,PANEL,TEST 20-10 PIN,IBM P/N 6633400; TEST PANEL,30 PIN IBM P/N 6632300 WO/TRANSIT CASE; TEST PANEL,20-10 PIN,IBM P/N 6633300 WO/TRANSIT CASE |
| DC Voltage Rating | 425.0 VOLTS NOMINAL LOCATION NOT OTHERWISE SPECIFIED |
| Height | 4.500 INCHES NOMINAL IN |
| Functional Classification | AA-9.1 |
| Functional Description | PROVIDES TEST POINTS FOR VOLTAGE AND CURRENT MEASUREMENTS AND OBSERVATION OF WAVEFORMS ON OTHERWISE INACCESSIBLE CONDUCTORS,OR AT 30 PIN MODULE CONNECTORS USED ON AN/ASB-4/4A/9/9A/16 BOMB/NAV SYSTEM A |
| Enclosure Feature | MULTIPLE ITEM W/CARRYING CASE |
| Width | 11.125 INCHES NOMINAL IN |
| Accessory Component Quantity | 2 |
| Test Type for Which Designed | VOLTAGE,CURRENT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 6632400 | International Business Machines Corp Parts Order Center Dept E - 54 (USA) |
| 6632400 PRIMARY | Lockheed Martin Corporation Div Rotary and Mission Systems (USA) |
| Reference | Meaning |
|---|---|
| 6632400 | 5/9 Secondary reference International Business Machines Corporation Dba IBM |
NSN 4920-00-588-3873 is a Test Set,fire Control System, manufactured by Lockheed Martin Corporation Div Rotary and Mission Systems, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-00-588-3873 has 2 manufacturer part numbers on file: 6632400 (International Business Machines Corp Parts Order Center Dept E - 54), 6632400 (Lockheed Martin Corporation Div Rotary and Mission Systems).
Key specifications for 6632400: Length: 16.000 INCHES NOMINAL IN; AC Voltage Rating: 425.0 VOLTS NOMINAL LOCATION NOT OTHERWISE SPECIFIED; Major Components: TEST PANEL,30 PIN; TRANSIT CASE; Relationship to Similar Equipment: TEST SET,PANEL,TEST 20-10 PIN,IBM P/N 6633400; TEST PANEL,30 PIN IBM P/N 6632300 WO/TRANSIT CASE; TEST PANEL,20-10 PIN,IBM P/N 6633300 WO/TRANSIT CASE. 12 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 4920-00-588-3873 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.