The Impeller,fan,axial, cataloged under National Stock Number 4140-01-707-4450, 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 Twin City Fan Companies Ltd. Dba Tc Axial Div. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-707-4450 |
| Primary Part Number | 36L420 |
| Item Name | Impeller,fan,axial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Twin City Fan Companies Ltd. Dba Tc Axial Div |
| Status | ACTIVE |
| Mounting Hole Quantity | 4 |
| Length | 42.000 INCHES NOMINAL IN |
| Style Designator | INTEGRAL SLINGER RING |
| Mounting Hole Diameter | 0.4375 INCHES NOMINAL IN |
| Ambient Temp at Full Rated Power | 600.00 FAHRENHEIT DEGF |
| Blade Quantity | 4 |
| Width | 42.000 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY BLADE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 4140-01-707-4450 is a Impeller,fan,axial, manufactured by Twin City Fan Companies Ltd. Dba Tc Axial Div, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-707-4450 has 2 manufacturer part numbers on file: 36L420 (Twin City Fan Companies Ltd. Dba Tc Axial Div), 1062582 (Tld Ace Corp Div Tld Ace).
Key specifications for 36L420: Mounting Hole Quantity: 4; Length: 42.000 INCHES NOMINAL IN; Style Designator: INTEGRAL SLINGER RING; Mounting Hole Diameter: 0.4375 INCHES NOMINAL IN. 8 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.