The Test Set,electronic Systems, cataloged under National Stock Number 4920-01-663-2181, 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 Westest Engineering Corporation Dba Westest. Government technical data includes 1 specification, 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 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4920-01-663-2181 |
| Primary Part Number | 7001000-1 |
| Item Name | Test Set,electronic Systems |
| FSC / FSG | 4920 / 49 — Aircraft Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Westest Engineering Corporation Dba Westest |
| Status | ACTIVE |
| Test Type for Which Designed | CLEARTEXT |
| 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 |
|---|---|
| 7001000-1 PRIMARY | Westest Engineering Corporation Dba Westest (USA) |
NSN 4920-01-663-2181 is a Test Set,electronic Systems, manufactured by Westest Engineering Corporation Dba Westest, classified under FSC 4920, Aircraft Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4920-01-663-2181 has 1 manufacturer part number on file: 7001000-1 (Westest Engineering Corporation Dba Westest).
2 possible matches (shared part number, not a government interchangeability claim): 4720-01-698-6245, 1550-01-718-5227. Verify interchangeability with system specifications before substitution.
Key specifications for 7001000-1: Test Type for Which Designed: CLEARTEXT. 1 specification is 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 4920-01-663-2181 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.