The Rotor Assembly, cataloged under National Stock Number 2925-01-397-8028, is classified within Federal Supply Class 2925 (Engine Electrical System Components, Aircraft Prime Moving) of the Engine Accessories group. The manufacturer of record is Williams International Co., L.l.c.. 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. 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 | 2925-01-397-8028 |
| Primary Part Number | 52921 |
| Item Name | Rotor Assembly |
| FSC / FSG | 2925 / 29 — Engine Electrical System Components, Aircraft Prime Moving |
| Manufacturer | Williams International Co., L.l.c. |
| Status | ACTIVE |
| Criticality Code Justification | AGAV |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 52921 PRIMARY | Williams International Co., L.l.c. (USA) |
NSN 2925-01-397-8028 is a Rotor Assembly, manufactured by Williams International Co., L.l.c., classified under FSC 2925, Engine Electrical System Components, Aircraft Prime Moving. Status: active.
NSN 2925-01-397-8028 has 1 manufacturer part number on file: 52921 (Williams International Co., L.l.c.).
1 possible match (shared part number, not a government interchangeability claim): 4910-01-622-4978. Verify interchangeability with system specifications before substitution.
Key specifications for 52921: Criticality Code Justification: AGAV; End Item Identification: J400 ENGINE. 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 2925-01-397-8028 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.