The Fan Assembly,tubeaxial, cataloged under National Stock Number 4140-01-648-1739, 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 Atrenne Computing Solutions, Llc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Fan Assembly,tubeaxial |
| FSC / FSG | 4140 — Fans, Air Circulators, and Blower Equipment (FSG 41) |
| Manufacturers | Atrenne Computing Solutions, Llc (CAGE 51398) |
| Parameter | Value |
|---|---|
| NSN | 4140-01-648-1739 |
| Primary Part Number | 099-646-SP42 |
| Item Name | Fan Assembly,tubeaxial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Atrenne Computing Solutions, Llc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 099-646-SP42 PRIMARY | Atrenne Computing Solutions, Llc (USA) |
| Reference | Meaning |
|---|---|
| 77A587673 | D/9 Drawing number reference only Lockheed Martin Corporation Div Rms |
| 77A587673P4 | 7/2 Vendor item drawing reference Lockheed Martin Corporation Div Rms |
NSN 4140-01-648-1739 is a Fan Assembly,tubeaxial, manufactured by Atrenne Computing Solutions, Llc, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-648-1739 has 1 manufacturer part number on file: 099-646-SP42 (Atrenne Computing Solutions, Llc).
2 possible matches (shared part number, not a government interchangeability claim): 5975-01-648-2016, 4140-01-648-4178. 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.
NSN 4140-01-648-1739 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.