The Fan,tubeaxial, cataloged under National Stock Number 4140-01-494-6783, 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 Nidec-Torin Corp. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-494-6783 |
| Primary Part Number | 030579 |
| Item Name | Fan,tubeaxial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Nidec-Torin Corp |
| 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 |
|---|---|
| 030579 | Nidec-Torin Corp (USA) |
| Reference | Meaning |
|---|---|
| A31787-10 | 3/9 Design control — primary reference Nidec-Torin Corp |
| B31787-10 | 5/9 Secondary reference Nidec-Torin Corp |
NSN 4140-01-494-6783 is a Fan,tubeaxial, manufactured by Nidec-Torin Corp, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-494-6783 has 1 manufacturer part number on file: 030579 (Nidec-Torin Corp).
1 possible match (shared part number, not a government interchangeability claim): 6540-01-507-3502. Verify interchangeability with system specifications before substitution.
Key specifications for 030579: Special Features: BALL BEARING FAN; End Item Identification: SOLID STATE RECEIVER/DIGITAL MOVING TARGET IND. (SSR-DMTI). 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.