The Impeller,fan,axial, cataloged under National Stock Number 4140-01-161-4999, 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 Reliance Electric Company Dba Reliance & Dodge Brands. Government technical data includes 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4140-01-161-4999 |
| Primary Part Number | 75440-4-C |
| Item Name | Impeller,fan,axial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Reliance Electric Company Dba Reliance & Dodge Brands |
| Status | ACTIVE |
| Attachment Method | LOCKNUT |
| Diameter | 5.500 INCHES NOMINAL IN |
| Material | PLASTIC OVERALL |
| 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 |
|---|---|
| 75440-4-C PRIMARY | Reliance Electric Company Dba Reliance & Dodge Brands (USA) |
| Reference | Meaning |
|---|---|
| 87230 PIECE 14 | C/1 Advisory reference — outside the item-of-supply concept Reliance Electric |
| 75440-4-C | 5/9 Secondary reference Reliance Electric |
NSN 4140-01-161-4999 is a Impeller,fan,axial, manufactured by Reliance Electric Company Dba Reliance & Dodge Brands, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-161-4999 has 1 manufacturer part number on file: 75440-4-C (Reliance Electric Company Dba Reliance & Dodge Brands).
1 possible match (shared part number, not a government interchangeability claim): 6105-01-560-1705. Verify interchangeability with system specifications before substitution.
Key specifications for 75440-4-C: Attachment Method: LOCKNUT; Diameter: 5.500 INCHES NOMINAL IN; Material: PLASTIC OVERALL. 3 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.