The Fan,centrifugal, cataloged under National Stock Number 4140-01-021-5674, 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 W.w. Grainger, Inc. Div Government Sales Division. Government technical data includes 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-021-5674 |
| Primary Part Number | 2C986 |
| Item Name | Fan,centrifugal |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | W.w. Grainger, Inc. Div Government Sales Division |
| Status | ACTIVE |
| Outlet Location | BOTTOM OR TOP |
| Mounting Facility Type and Quantity | 4 UNTHREADED HOLE(S) |
| Outlet Inside Height | 10.250 INCHES NOMINAL IN |
| Length | 14.630 INCHES NOMINAL IN |
| Drive Type | BELT |
| Style Designator | FIXED, RECTANGULAR OUTLETS |
| Features Provided | SAFETY IMPELLER GUARD |
| Discharge Direction | HORIZONTAL AND VERTICAL DOWN AND VERTICAL UP |
| Outlet Inside Width | 6.500 INCHES NOMINAL IN |
| Height | 16.130 INCHES NOMINAL IN |
| Stage Quantity | 1 |
| Surface Treatment | ENAMEL HOUSING |
| Test Data Document | 13499-009-0224 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING) |
| Material | STEEL HOUSING |
| Rotation Direction for Which Designed | CLOCKWISE |
| Static Pressure at Specified Air Flow Rate | ERR-060 |
| 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 |
|---|---|
| 2C986 PRIMARY | W.w. Grainger, Inc. Div Government Sales Division (USA) |
| Reference | Meaning |
|---|---|
| 009-0224-010 | 5/9 Secondary reference Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
NSN 4140-01-021-5674 is a Fan,centrifugal, manufactured by W.w. Grainger, Inc. Div Government Sales Division, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-021-5674 has 1 manufacturer part number on file: 2C986 (W.w. Grainger, Inc. Div Government Sales Division).
Key specifications for 2C986: Outlet Location: BOTTOM OR TOP; Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S); Outlet Inside Height: 10.250 INCHES NOMINAL IN; Length: 14.630 INCHES NOMINAL IN. 16 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.