The Fan,vaneaxial, cataloged under National Stock Number 4140-01-617-6691, 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 Hoffman Enclosures Inc Dba Hoffman Enclosures Inc. The record lists 4 manufacturer part numbers 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.
| Item Name | Fan,vaneaxial |
| FSC / FSG | 4140 — Fans, Air Circulators, and Blower Equipment (FSG 41) |
| Manufacturers | Naval Sea Systems Command (CAGE 53711); Hoffman Enclosures Inc Dba Hoffman Enclosures Inc (CAGE 1WSN4); Pentair Technical Products Dba Mclean Thermal Div Hoffman Enclosures Inc (CAGE 61154); Raytheon Company Div Corp (CAGE 49956) |
| Parameter | Value |
|---|---|
| NSN | 4140-01-617-6691 |
| Primary Part Number | A4AXFN |
| Item Name | Fan,vaneaxial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Hoffman Enclosures Inc Dba Hoffman Enclosures Inc |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 8671000 NO 43 | Naval Sea Systems Command (USA) |
| A4AXFN PRIMARY | Hoffman Enclosures Inc Dba Hoffman Enclosures Inc (USA) |
| A-4AXFN PRIMARY | Pentair Technical Products Dba Mclean Thermal Div Hoffman Enclosures Inc (USA) |
| H375022-126 | Raytheon Company Div Corp (USA) |
NSN 4140-01-617-6691 is a Fan,vaneaxial, manufactured by Hoffman Enclosures Inc Dba Hoffman Enclosures Inc, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-617-6691 has 4 manufacturer part numbers on file: 8671000 NO 43 (Naval Sea Systems Command), A4AXFN (Hoffman Enclosures Inc Dba Hoffman Enclosures Inc), A-4AXFN (Pentair Technical Products Dba Mclean Thermal Div Hoffman Enclosures Inc), H375022-126 (Raytheon Company Div Corp).
1 possible match (shared part number, not a government interchangeability claim): 4140-01-687-6756. Verify interchangeability with system specifications before substitution.
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.