The Guard,fan Impeller, cataloged under National Stock Number 4140-01-322-2792, is classified within Federal Supply Class 4140 (Fans, Air Circulators, and Blower Equipment) of the Refrigeration, AC, and Air Circulating Equipment group. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4140-01-322-2792 |
| Item Name | Guard,fan Impeller |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 501384 | 5/9 Secondary reference U.S. Government activity |
| 138C092H02 | 7/9 Vendor item drawing reference U.S. Government activity |
| 138C092H02 | 7/2 Vendor item drawing reference Northrop Grumman Support Services Corp |
| 501384000 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4140-01-322-2792 is a Guard,fan Impeller, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5998-01-435-5334. Verify interchangeability with system specifications before substitution.
Key specifications for 4140-01-322-2792: Special Features: CORROSION RESISTING STEEL;7.810 IN.OVERALL DIA; IN. 0 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.