The Fan,tubeaxial, cataloged under National Stock Number 4140-01-574-3951, 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 15 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-574-3951 |
| Primary Part Number | MCD6173-1 |
| Item Name | Fan,tubeaxial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Fm Af, Llc Dba American Fan Company |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 2 FLANGE |
| Speed Adjustments | SINGLE SPEED |
| Phase | THREE |
| Shaft Bearing Type | BALL |
| Frequency in Hertz | 60.0 |
| Inclosure Type | GUARDED |
| Length | 25.500 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 440.0 AC |
| Flow Direction | INWARD |
| Housing Inside Diameter | 19.680 INCHES NOMINAL IN |
| Drive Type | DIRECT |
| Style Designator | FIXED |
| Prime Mover Type | ELECTRIC MOTOR |
| Rotation Direction for Which Designed | CLOCKWISE |
| Electrical Connection Type | WIRE LEAD |
| 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 |
|---|---|
| MCD6173-1 PRIMARY | Fm Af, Llc Dba American Fan Company (USA) |
| FF-19652-5 | Fm Af, Llc Dba American Fan Company (USA) |
NSN 4140-01-574-3951 is a Fan,tubeaxial, manufactured by Fm Af, Llc Dba American Fan Company, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-574-3951 has 2 manufacturer part numbers on file: MCD6173-1 (Fm Af, Llc Dba American Fan Company), FF-19652-5 (Fm Af, Llc Dba American Fan Company).
Key specifications for MCD6173-1: Mounting Facility Type and Quantity: 2 FLANGE; Speed Adjustments: SINGLE SPEED; Phase: THREE; Shaft Bearing Type: BALL. 15 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.