The Accessory Kit,test Set, cataloged under National Stock Number 4920-01-374-5560, 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 6 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4920-01-374-5560 |
| Primary Part Number | 685303-1 |
| Item Name | Accessory Kit,test Set |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Lockheed Martin Corporation Div Rotary and Mission Systems |
| Status | ACTIVE |
| Component Quantity | 271 |
| Unpackaged Unit Length | 31.500 INCHES NOMINAL IN |
| Reference Data and Literature | SERD NO. 22.71A A |
| Unpackaged Unit Width | 21.300 INCHES NOMINAL IN |
| Unpackaged Unit Height | 18.400 INCHES NOMINAL IN |
| Functional Description | THE ACCESSORY KIT IS USED WITH THE AIRCRAFT RADAR TEST STATION MK-2712/APM-473 DURING TESTING THE RADAR TEST SET APQ-170 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | N |
| Part Number | Manufacturer |
|---|---|
| 685303-1 PRIMARY | Lockheed Martin Corporation Div Rotary and Mission Systems (USA) |
| Reference | Meaning |
|---|---|
| MK-2712/APM-473 | 5/1 Secondary reference U.S. Government activity |
NSN 4920-01-374-5560 is a Accessory Kit,test Set, manufactured by Lockheed Martin Corporation Div Rotary and Mission Systems, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-01-374-5560 has 1 manufacturer part number on file: 685303-1 (Lockheed Martin Corporation Div Rotary and Mission Systems).
Key specifications for 685303-1: Component Quantity: 271; Unpackaged Unit Length: 31.500 INCHES NOMINAL IN; Reference Data and Literature: SERD NO. 22.71A A; Unpackaged Unit Width: 21.300 INCHES NOMINAL IN. 6 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.
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.