The Impeller,fan,axial, cataloged under National Stock Number 4140-01-255-4725, 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 Tld Ace Corp Div Tld Ace. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-255-4725 |
| Primary Part Number | 30034-1 |
| Item Name | Impeller,fan,axial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Tld Ace Corp Div Tld Ace |
| Status | ACTIVE |
| Diameter | 42.000 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| 30034-1 PRIMARY | Tld Ace Corp Div Tld Ace (USA) |
| Reference | Meaning |
|---|---|
| F-42-36 | 5/1 Secondary reference Air Turbine Propeller Co |
NSN 4140-01-255-4725 is a Impeller,fan,axial, manufactured by Tld Ace Corp Div Tld Ace, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-255-4725 has 1 manufacturer part number on file: 30034-1 (Tld Ace Corp Div Tld Ace).
Key specifications for 30034-1: Diameter: 42.000 INCHES NOMINAL IN; Material: STEEL OVERALL. 2 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.