The Blower,bearing Asse, cataloged under National Stock Number 4140-00-378-0052, is classified within Federal Supply Class 4140 (Fans, Air Circulators, and Blower Equipment) of the Refrigeration, AC, and Air Circulating Equipment group. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | Blower,bearing Asse |
| FSC / FSG | 4140 — Fans, Air Circulators, and Blower Equipment (FSG 41) |
| Parameter | Value |
|---|---|
| NSN | 4140-00-378-0052 |
| Item Name | Blower,bearing Asse |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Reference | Meaning |
|---|---|
| D5963 | C/1 Advisory reference — outside the item-of-supply concept Stafford Machinery Corp |
| D5963 | 5/9 Secondary reference U.S. Government activity |
| G5729CPC12 | 5/9 Secondary reference Walron Associates Inc |
| D5963 | 3/9 Design control — primary reference Walron Associates Inc |
| G5729CPC12 | 5/9 Secondary reference U.S. Government activity |
NSN 4140-00-378-0052 is a Blower,bearing Asse, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 1055-00-699-0863. 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.