The Fan,tubeaxial, cataloged under National Stock Number 4140-01-581-4243, 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 9 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 | 4140-01-581-4243 |
| Primary Part Number | 8431125-3 |
| Item Name | Fan,tubeaxial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | W R Systems Ltd Dba Alert |
| Status | ACTIVE |
| Inclosure Type | PARTIALLY INCLOSED |
| Length | 1.560 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 5.0 DC |
| Drive Type | DIRECT |
| Style Designator | FIXED |
| Height | 1.560 INCHES NOMINAL IN |
| Width | 0.400 INCHES NOMINAL IN |
| Prime Mover Type | ELECTRIC MOTOR |
| Electrical Connection Type | WIRE LEAD AND LUG |
| 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 |
|---|---|
| 8410428 FIND 4 | Naval Sea Systems Command (USA) |
| 8431125-3 PRIMARY | W R Systems Ltd Dba Alert (USA) |
| 8431125-3 | Naval Sea Systems Command (USA) |
NSN 4140-01-581-4243 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 4140-01-581-4243 has 3 manufacturer part numbers on file: 8410428 FIND 4 (Naval Sea Systems Command), 8431125-3 (W R Systems Ltd Dba Alert), 8431125-3 (Naval Sea Systems Command).
Key specifications for 8431125-3: Inclosure Type: PARTIALLY INCLOSED; Length: 1.560 INCHES NOMINAL IN; Voltage in Volts and Current Type: 5.0 DC; Drive Type: DIRECT. 9 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.