The Fan,centrifugal, cataloged under National Stock Number 4140-01-304-0868, 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 20 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-304-0868 |
| Primary Part Number | 525112-3 |
| Item Name | Fan,centrifugal |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Fm Af, Llc Dba American Fan Company |
| Status | ACTIVE |
| Outlet Location | TOP |
| Mounting Facility Type and Quantity | 4 BASE PLATE |
| Speed Adjustments | SINGLE SPEED |
| Shaft Bearing Type | BALL |
| Inclosure Type | FULLY INCLOSED |
| Outlet Inside Height | 23.937 INCHES NOMINAL IN |
| Length | 40.000 INCHES NOMINAL IN |
| Drive Type | BELT |
| Prime Mover Power Rating | 20.000 HORSEPOWER |
| Style Designator | FIXED, RECTANGULAR OUTLETS |
| Features Provided | FLANGED AIR INLET |
| Discharge Direction | VERTICAL UP |
| Outlet Inside Width | 17.125 INCHES NOMINAL IN |
| Height | 44.891 INCHES NOMINAL IN |
| Operating Speed at Rated Capacity in RPM | 2550.0 |
| Surface Treatment | CHROMATE ZINC AND ENAMEL SEMIGLOSS OVERALL |
| Width | 53.250 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Prime Mover Type | ELECTRIC MOTOR |
| Rotation Direction for Which Designed | CLOCKWISE |
| 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 |
|---|---|
| 525112-3 PRIMARY | Fm Af, Llc Dba American Fan Company (USA) |
| Reference | Meaning |
|---|---|
| 525111-3 | C/1 Advisory reference — outside the item-of-supply concept Fm Af, Llc Dba American Fan Company |
| CLASSIII BD CW UB SZ 2225 | 5/9 Secondary reference Fm Af, Llc Dba American Fan Company |
NSN 4140-01-304-0868 is a Fan,centrifugal, manufactured by Fm Af, Llc Dba American Fan Company, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-304-0868 has 1 manufacturer part number on file: 525112-3 (Fm Af, Llc Dba American Fan Company).
Key specifications for 525112-3: Outlet Location: TOP; Mounting Facility Type and Quantity: 4 BASE PLATE; Speed Adjustments: SINGLE SPEED; Shaft Bearing Type: BALL. 20 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.