The Fan,circulating, cataloged under National Stock Number 4140-00-862-5644, 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 Espey Mfg and Electronics Corp. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Fan,circulating |
| FSC / FSG | 4140 — Fans, Air Circulators, and Blower Equipment (FSG 41) |
| Manufacturers | Espey Mfg and Electronics Corp (CAGE 20950) |
| Parameter | Value |
|---|---|
| NSN | 4140-00-862-5644 |
| Primary Part Number | 54262 |
| Item Name | Fan,circulating |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Espey Mfg and Electronics Corp |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 54262 PRIMARY | Espey Mfg and Electronics Corp (USA) |
| Reference | Meaning |
|---|---|
| GX18080-1 | 5/9 Secondary reference Unisys Corp Defense Systems C S D Field Engineering |
| 4140PL1339611 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| GX18080-1 | 5/9 Secondary reference Lockheed Martin Corp Lockheed Martin Mission Systems |
| 19A842 | 5/9 Secondary reference Globe Motors, Inc. Dba Allient Dayton |
| NGX18080-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4140-00-862-5644 is a Fan,circulating, manufactured by Espey Mfg and Electronics Corp, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-00-862-5644 has 1 manufacturer part number on file: 54262 (Espey Mfg and Electronics Corp).
1 possible match (shared part number, not a government interchangeability claim): 5995-01-332-1786. Verify interchangeability with system specifications before substitution.
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.