The Fan,tubeaxial, cataloged under National Stock Number 4140-01-575-8446, 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 W R Systems Ltd Dba Alert. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-575-8446 |
| Primary Part Number | 8431125-1 |
| Item Name | Fan,tubeaxial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | W R Systems Ltd Dba Alert |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 2 FLANGE AND 4 UNTHREADED HOLE(S) |
| Speed Adjustments | SINGLE SPEED |
| Shaft Bearing Type | SLEEVE |
| Inclosure Type | PARTIALLY INCLOSED |
| Length | 40.0 MILLIMETERS NOMINAL MM |
| Voltage in Volts and Current Type | 5.0 DC |
| Flow Direction | INWARD |
| Drive Type | DIRECT |
| Prime Mover Power Rating | 0.9 WATTS |
| Style Designator | FIXED |
| Operating Speed at Rated Capacity in RPM | 6000.0 |
| Width | 40.0 MILLIMETERS NOMINAL MM |
| Material | GLASS FIBER AND PLASTIC OVERALL |
| Prime Mover Type | ELECTRIC MOTOR |
| Rotation Direction for Which Designed | COUNTERCLOCKWISE |
| Electrical Connection Type | WIRE LEAD AND TERMINAL |
| Air Flow Rate | 5.3 CUBIC FEET PER MINUTE NOMINAL |
| 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 |
|---|---|
| 8431125-1 PRIMARY | W R Systems Ltd Dba Alert (USA) |
| 8431125-1 | Naval Sea Systems Command (USA) |
| 8410428 FIND 2 | Naval Sea Systems Command (USA) |
NSN 4140-01-575-8446 is a Fan,tubeaxial, manufactured by W R Systems Ltd Dba Alert, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-575-8446 has 3 manufacturer part numbers on file: 8431125-1 (W R Systems Ltd Dba Alert), 8431125-1 (Naval Sea Systems Command), 8410428 FIND 2 (Naval Sea Systems Command).
Key specifications for 8431125-1: Mounting Facility Type and Quantity: 2 FLANGE AND 4 UNTHREADED HOLE(S); Speed Adjustments: SINGLE SPEED; Shaft Bearing Type: SLEEVE; Inclosure Type: PARTIALLY INCLOSED. 17 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.