The Fan,vaneaxial, cataloged under National Stock Number 4140-01-421-5893, 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 Fm Af, Llc Dba American Fan Company. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Fan,vaneaxial |
| FSC / FSG | 4140 — Fans, Air Circulators, and Blower Equipment (FSG 41) |
| Manufacturers | Fm Af, Llc Dba American Fan Company (CAGE 75477) |
| Parameter | Value |
|---|---|
| NSN | 4140-01-421-5893 |
| Primary Part Number | B5708-2 |
| Item Name | Fan,vaneaxial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Fm Af, Llc Dba American Fan Company |
| 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 |
|---|---|
| B5708-2 PRIMARY | Fm Af, Llc Dba American Fan Company (USA) |
| 43C5NS | Fm Af, Llc Dba American Fan Company (USA) |
| Reference | Meaning |
|---|---|
| 43C5NS | 5/9 Secondary reference New Philadelphia Fan Co Buffalo Forge Marine Fans |
| B5708-2 | 5/9 Secondary reference New Philadelphia Fan Co Buffalo Forge Marine Fans |
| B5708-2-MCD-570 8 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 4140-01-421-5893 is a Fan,vaneaxial, manufactured by Fm Af, Llc Dba American Fan Company, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-421-5893 has 2 manufacturer part numbers on file: B5708-2 (Fm Af, Llc Dba American Fan Company), 43C5NS (Fm Af, Llc Dba American Fan Company).
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.