The Fan, cataloged under National Stock Number 4140-01-191-4732, 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 Electromech Technologies Llc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4140-01-191-4732 |
| Primary Part Number | 55-25750 |
| Item Name | Fan |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Electromech Technologies Llc |
| Status | ACTIVE |
| General Characteristics Item Description | 115 VOLTS; 400 HERTZ; 3 PHASE |
| 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 |
|---|---|
| 55-25750 PRIMARY | Electromech Technologies Llc (USA) |
| Reference | Meaning |
|---|---|
| 55-25750 | 5/9 Secondary reference Western Sky Industries Inc Dba Electromech Techologies |
NSN 4140-01-191-4732 is a Fan, manufactured by Electromech Technologies Llc, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-191-4732 has 1 manufacturer part number on file: 55-25750 (Electromech Technologies Llc).
1 possible match (shared part number, not a government interchangeability claim): 4140-01-191-4770. Verify interchangeability with system specifications before substitution.
Key specifications for 55-25750: General Characteristics Item Description: 115 VOLTS; 400 HERTZ; 3 PHASE. 1 specification is 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.