The Test Set,countermeasures Set, cataloged under National Stock Number 4920-00-472-1545, 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 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple. Government technical data includes 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4920-00-472-1545 |
| Primary Part Number | 31-020304-52 |
| Item Name | Test Set,countermeasures Set |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple |
| Status | ACTIVE |
| Major Components | EXTENDER CARD 3; PRINTED WIRING BOARD 3; CABLE ASSY 8; ADAPTER 3; TEST SET SUBASSY 1; AND MISC HARDWARE |
| Reference Data and Literature | T.O. 33D7-36-11-4 |
| Enclosure Feature | MULTIPLE ITEM W/HOUSING |
| Test Type for Which Designed | POWER; RECEIVING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL P — Demil Prior To Sale/Transfer |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 31-020304-52 PRIMARY | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple (USA) |
| Reference | Meaning |
|---|---|
| 31-020304-52 | 5/9 Secondary reference Northrop Grumman Systems Corporation Div Es Defensive Systems Division |
| AN/APM-381 | 5/1 Secondary reference U.S. Government activity |
NSN 4920-00-472-1545 is a Test Set,countermeasures Set, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-00-472-1545 has 1 manufacturer part number on file: 31-020304-52 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple).
1 possible match (shared part number, not a government interchangeability claim): 4920-01-037-8363. Verify interchangeability with system specifications before substitution.
Key specifications for 31-020304-52: Major Components: EXTENDER CARD 3; PRINTED WIRING BOARD 3; CABLE ASSY 8; ADAPTER 3; TEST SET SUBASSY 1; AND MISC HARDWARE; Reference Data and Literature: T.O. 33D7-36-11-4; Enclosure Feature: MULTIPLE ITEM W/HOUSING; End Item Identification: AN/ALE-38. 4 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 4920-00-472-1545 has DEMIL Code P. 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.