The Fan, cataloged under National Stock Number 4140-01-444-3945, 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 Knight Electronics, Inc Div Orion Fans. 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 |
| FSC / FSG | 4140 — Fans, Air Circulators, and Blower Equipment (FSG 41) |
| Manufacturers | Knight Electronics, Inc Div Orion Fans (CAGE 1VEL5) |
| Parameter | Value |
|---|---|
| NSN | 4140-01-444-3945 |
| Primary Part Number | OD6025-24MB |
| Item Name | Fan |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Knight Electronics, Inc Div Orion Fans |
| 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 |
|---|---|
| OD6025-24MB PRIMARY | Knight Electronics, Inc Div Orion Fans (USA) |
| Reference | Meaning |
|---|---|
| 031157 | 3/9 Design control — primary reference Comair Rotron Inc Sub of Kl Industries Inc |
| B22-0025-002 | 5/9 Secondary reference L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications |
| 500-036-10 | 5/9 Secondary reference Alpha Technologies Incorporated Dba Alpha Group, the |
| 031157 | 5/9 Secondary reference U.S. Government activity |
| OD6025-24MB | 5/9 Secondary reference Digi-Key Corp |
NSN 4140-01-444-3945 is a Fan, manufactured by Knight Electronics, Inc Div Orion Fans, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-444-3945 has 1 manufacturer part number on file: OD6025-24MB (Knight Electronics, Inc Div Orion Fans).
1 possible match (shared part number, not a government interchangeability claim): 6515-01-509-7737. 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.