The Guard,fan Impeller, cataloged under National Stock Number 4140-01-341-9179, is classified within Federal Supply Class 4140 (Fans, Air Circulators, and Blower Equipment) of the Refrigeration, AC, and Air Circulating Equipment group. The manufacturer of record is Naval Sea Systems Command. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4140-01-341-9179 |
| Primary Part Number | 5749279-007 |
| Item Name | Guard,fan Impeller |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Body Material | PLASTIC MESH |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 5749279-007 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 5749279-007 | 3/9 Design control — primary reference U.S. Government activity |
NSN 4140-01-341-9179 is a Guard,fan Impeller, manufactured by Naval Sea Systems Command, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-341-9179 has 1 manufacturer part number on file: 5749279-007 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 4140-01-346-5514. Verify interchangeability with system specifications before substitution.
Key specifications for 5749279-007: Body Material: PLASTIC MESH. 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.
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.