The Impeller,fan,axial, cataloged under National Stock Number 4140-00-441-9138, 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 Torrington Swager & Vaill End Forming Machinery Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Impeller,fan,axial |
| FSC / FSG | 4140 — Fans, Air Circulators, and Blower Equipment (FSG 41) |
| Manufacturers | Torrington Swager & Vaill End Forming Machinery Inc (CAGE 62574) |
| Parameter | Value |
|---|---|
| NSN | 4140-00-441-9138 |
| Primary Part Number | AA729-324-2 |
| Item Name | Impeller,fan,axial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Torrington Swager & Vaill End Forming Machinery Inc |
| 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 |
|---|---|
| AA729-324-2 PRIMARY | Torrington Swager & Vaill End Forming Machinery Inc (USA) |
| Reference | Meaning |
|---|---|
| AA729-324-2 | 3/9 Design control — primary reference Torrington Co the Special Products Div |
| SC-D-539613 | 5/9 Secondary reference U.S. Government activity |
| SC-D-539613-1 | 5/9 Secondary reference U.S. Government activity |
NSN 4140-00-441-9138 is a Impeller,fan,axial, manufactured by Torrington Swager & Vaill End Forming Machinery Inc, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-00-441-9138 has 1 manufacturer part number on file: AA729-324-2 (Torrington Swager & Vaill End Forming Machinery Inc).
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.