The Fan,tubeaxial, cataloged under National Stock Number 4140-01-641-6633, 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 Sunon Inc. Government technical data includes 11 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-641-6633 |
| Primary Part Number | PF40281B1-000U-A99 |
| Item Name | Fan,tubeaxial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Sunon Inc |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 4 THREADED HOLE(S) |
| Length | 40.0 MILLIMETERS NOMINAL MM |
| Voltage in Volts and Current Type | 12.0 DC |
| Drive Type | DIRECT |
| Style Designator | FIXED |
| Height | 40.0 MILLIMETERS NOMINAL MM |
| Operating Speed at Rated Capacity in RPM | 13000.0 |
| Width | 28.0 MILLIMETERS NOMINAL MM |
| Material | PLASTIC OVERALL |
| Static Pressure at Specified Air Flow Rate | ERR-060 |
| Air Flow Rate | 24.0 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 |
|---|---|
| PF40281B1-000U-A99 PRIMARY | Sunon Inc (USA) |
| Reference | Meaning |
|---|---|
| PMD1204PQBX-A(2).F.GN | 5/9 Secondary reference Sunon Inc |
| PF40281B1-000U-A99ND | 5/9 Secondary reference Digi-Key Corp |
NSN 4140-01-641-6633 is a Fan,tubeaxial, manufactured by Sunon Inc, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-641-6633 has 1 manufacturer part number on file: PF40281B1-000U-A99 (Sunon Inc).
Key specifications for PF40281B1-000U-A99: Mounting Facility Type and Quantity: 4 THREADED HOLE(S); Length: 40.0 MILLIMETERS NOMINAL MM; Voltage in Volts and Current Type: 12.0 DC; Drive Type: DIRECT. 11 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.