The Fan,vaneaxial, cataloged under National Stock Number 4140-01-512-6903, 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 Compaq Computer Corp.. Government technical data includes 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4140-01-512-6903 |
| Primary Part Number | 293048-B21 |
| Item Name | Fan,vaneaxial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Compaq Computer Corp. |
| Status | ACTIVE |
| Inclosure Type | PARTIALLY INCLOSED |
| Drive Type | DIRECT |
| Quantity | 3 |
| Style Designator | FIXED, MULTI-UNIT |
| Prime Mover Type | ELECTRIC MOTOR |
| Electrical Connection Type | CONNECTOR PLUG |
| 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 |
|---|---|
| 293048-B21 PRIMARY | Compaq Computer Corp. (USA) |
| 293048-B21 | Navy, United States Department of the Dba Space & Naval Warfare Systems Center, Atlantic (USA) |
| Reference | Meaning |
|---|---|
| 279036-001 | 5/9 Secondary reference Compaq Computer Corp. |
NSN 4140-01-512-6903 is a Fan,vaneaxial, manufactured by Compaq Computer Corp., classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-512-6903 has 2 manufacturer part numbers on file: 293048-B21 (Compaq Computer Corp.), 293048-B21 (Navy, United States Department of the Dba Space & Naval Warfare Systems Center, Atlantic).
1 possible match (shared part number, not a government interchangeability claim): 4140-01-622-2729. Verify interchangeability with system specifications before substitution.
Key specifications for 293048-B21: Inclosure Type: PARTIALLY INCLOSED; Drive Type: DIRECT; Quantity: 3; Style Designator: FIXED, MULTI-UNIT. 6 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.