The Fan,crossflow, cataloged under National Stock Number 4140-01-686-3707, 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 Extreme Networks, Inc. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-686-3707 |
| Primary Part Number | 10945 |
| Item Name | Fan,crossflow |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Extreme Networks, Inc |
| 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 |
|---|---|
| 10945 PRIMARY | Extreme Networks, Inc (USA) |
| 1AAN003145 | Leonardo S.p.a Land & Naval Defence Electronics Division (ITA) |
| 10945 | Leonardo S.p.a Land & Naval Defence Electronics Division (ITA) |
| 10945 | Iti Innovazione Tecnologica Italiana S.r.l. (ITA) |
NSN 4140-01-686-3707 is a Fan,crossflow, manufactured by Extreme Networks, Inc, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-686-3707 has 4 manufacturer part numbers on file: 10945 (Extreme Networks, Inc), 1AAN003145 (Leonardo S.p.a Land & Naval Defence Electronics Division), 10945 (Leonardo S.p.a Land & Naval Defence Electronics Division), 10945 (Iti Innovazione Tecnologica Italiana S.r.l.).
2 possible matches (shared part number, not a government interchangeability claim): 5950-01-688-1429, 6150-01-721-1442. Verify interchangeability with system specifications before substitution.
Key specifications for 10945: Part Name Assigned by Controlling Agency: FRONT-TO-BACK FAN MODULE FB. 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.