The Fan,centrifugal, cataloged under National Stock Number 4140-01-491-5544, 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 Eaton Corporation. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4140-01-491-5544 |
| Primary Part Number | 151101056-001 |
| Item Name | Fan,centrifugal |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Eaton Corporation |
| Status | ACTIVE |
| 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 |
|---|---|
| 151101056-001 PRIMARY | Eaton Corporation (USA) |
| Reference | Meaning |
|---|---|
| 031512-JQ24K0X | 5/9 Secondary reference Comair Rotron Inc Sub of Kl Industries Inc |
NSN 4140-01-491-5544 is a Fan,centrifugal, manufactured by Eaton Corporation, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-491-5544 has 1 manufacturer part number on file: 151101056-001 (Eaton Corporation).
1 possible match (shared part number, not a government interchangeability claim): 4140-01-607-3831. Verify interchangeability with system specifications before substitution.
Key specifications for 151101056-001: Special Features: FAN 24VDC 283 CFM VDC; End Item Identification: NATIONAL EXIDE/IPM/UNINTERRUPTIBLE POWER SYSTEM (NEIUPS). 0 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.