The Fan,tubeaxial, cataloged under National Stock Number 4140-01-062-4520, is classified within Federal Supply Class 4140 (Fans, Air Circulators, and Blower Equipment) of the Refrigeration, AC, and Air Circulating Equipment group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-062-4520 |
| Item Name | Fan,tubeaxial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 1 THREADED HOLE(S) |
| Inclosure Type | OPEN |
| Length | 1.642 INCHES MINIMUM AND 1.702 INCHES MAXIMUM IN |
| Flow Direction | OUTWARD |
| Housing Inside Diameter | 3.740 INCHES MINIMUM AND 3.760 INCHES MAXIMUM IN |
| Drive Type | DIRECT |
| Style Designator | FIXED |
| Material Document and Classification | MIL-B-23071 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Diameter | 3.562 INCHES NOMINAL IN |
| Operating Speed at Rated Capacity in RPM | 11150.0 |
| Material | ALUMINUM ALLOY OVERALL |
| Prime Mover Type | ELECTRIC MOTOR |
| Rotation Direction for Which Designed | COUNTERCLOCKWISE |
| Static Pressure at Specified Air Flow Rate | ERR-060 |
| Air Flow Rate | 25.0 CUBIC FEET PER MINUTE MINIMUM AND 200.0 CUBIC FEET PER MINUTE MAXIMUM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 6090759-4 | 7/2 Vendor item drawing reference Lockheed Martin Corporation Div Rotary and Mission Systems |
| A074940 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4140-01-062-4520 is a Fan,tubeaxial, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
Key specifications for 4140-01-062-4520: Mounting Facility Type and Quantity: 1 THREADED HOLE(S); Inclosure Type: OPEN; Length: 1.642 INCHES MINIMUM AND 1.702 INCHES MAXIMUM IN; Flow Direction: OUTWARD. 15 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.