The Fan,vaneaxial, cataloged under National Stock Number 4140-01-250-0691, 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. Government technical data includes 14 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-250-0691 |
| Primary Part Number | A5A4W8 |
| Item Name | Fan,vaneaxial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Fm Af, Llc Dba American Fan Company |
| Status | ACTIVE |
| Phase | THREE |
| Inclosure Type | FULLY INCLOSED |
| Length | 29.625 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 440.0 AC |
| Flow Direction | INWARD |
| Housing Inside Diameter | 23.250 INCHES NOMINAL IN |
| Drive Type | DIRECT |
| Prime Mover Power Rating | 4.000 HORSEPOWER |
| Style Designator | FIXED |
| Ambient Temp at Full Rated Power | 80.0 CELSIUS DEGC |
| Operating Speed at Rated Capacity in RPM | 1750.0 |
| Prime Mover Type | ELECTRIC MOTOR |
| Prime Mover Drive Shaft Bearing Type | BALL |
| Air Flow Rate | 5000.0 CUBIC FEET PER MINUTE NOMINAL |
| 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 |
|---|---|
| A5A4W8 PRIMARY | Fm Af, Llc Dba American Fan Company (USA) |
| Reference | Meaning |
|---|---|
| FF14122CDFF15864A5A4W8 | 5/9 Secondary reference Fm Af, Llc Dba American Fan Company |
| MIL-PRF-18953 | 4/1 Identification reference U.S. Government activity |
| A5A4W8FF14122 | C/1 Advisory reference — outside the item-of-supply concept Fm Af, Llc Dba American Fan Company |
| R1-3562-A5A4W8 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| MIL-F-18953 | 5/9 Secondary reference U.S. Government activity |
NSN 4140-01-250-0691 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 4140-01-250-0691 has 1 manufacturer part number on file: A5A4W8 (Fm Af, Llc Dba American Fan Company).
Key specifications for A5A4W8: Phase: THREE; Inclosure Type: FULLY INCLOSED; Length: 29.625 INCHES NOMINAL IN; Voltage in Volts and Current Type: 440.0 AC. 14 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.