The Fan,centrifugal, cataloged under National Stock Number 4140-01-050-1987, 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 Cae Usa Inc.. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-050-1987 |
| Primary Part Number | A227-1 |
| Item Name | Fan,centrifugal |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Cae Usa Inc. |
| Status | ACTIVE |
| Speed Adjustments | SINGLE SPEED |
| Phase | THREE |
| Frequency in Hertz | 60.0 |
| Inclosure Type | FULLY INCLOSED |
| Voltage in Volts and Current Type | 208.0 AC OR 220.0 AC OR 440.0 AC |
| Drive Type | DIRECT |
| Prime Mover Power Rating | 3.000 HORSEPOWER |
| Style Designator | FIXED, RECTANGULAR OUTLETS |
| Operating Speed at Rated Capacity in RPM | 3450.0 |
| Material | STEEL HOUSING |
| Material | ALUMINUM BLADE |
| 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 |
|---|---|
| 2C739-2N996 | W.w. Grainger, Inc. Div Government Sales Division (USA) |
| A227-1 PRIMARY | Cae Usa Inc. (USA) |
| 7C459 | W.w. Grainger, Inc. Div Government Sales Division (USA) |
| Reference | Meaning |
|---|---|
| A227-1 | 5/9 Secondary reference Raytheon Technical Services Company |
| 2C739-2N996 | 5/9 Secondary reference Dayton Electric Mfg Co |
NSN 4140-01-050-1987 is a Fan,centrifugal, manufactured by Cae Usa Inc., classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-050-1987 has 3 manufacturer part numbers on file: 2C739-2N996 (W.w. Grainger, Inc. Div Government Sales Division), A227-1 (Cae Usa Inc.), 7C459 (W.w. Grainger, Inc. Div Government Sales Division).
1 possible match (shared part number, not a government interchangeability claim): 6660-01-361-7465. Verify interchangeability with system specifications before substitution.
Key specifications for A227-1: Speed Adjustments: SINGLE SPEED; Phase: THREE; Frequency in Hertz: 60.0; Inclosure Type: FULLY INCLOSED. 13 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.