The Fan,tubeaxial, cataloged under National Stock Number 4140-01-374-4672, 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 Kl Industries Inc. Government technical data includes 17 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-374-4672 |
| Primary Part Number | 028865 |
| Item Name | Fan,tubeaxial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Kl Industries Inc |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 4 UNTHREADED HOLE(S) |
| Inclosure Type | PARTIALLY INCLOSED |
| Voltage in Volts and Current Type | 12.0 DC |
| Drive Type | DIRECT |
| Prime Mover Power Rating | 6.0 WATTS |
| Diameter | 4.550 INCHES NOMINAL IN |
| Ambient Temp at Full Rated Power | -10.0 CELSIUS AND 70.0 CELSIUS DEGC |
| Operating Speed at Rated Capacity in RPM | 3100.0 |
| Surface Treatment | PAINT HOUSING |
| Width | 1.540 INCHES NOMINAL IN |
| Material | PLASTIC POLYPROPYLENE HOUSING |
| Material | ZINC ALLOY BLADE |
| Prime Mover Type | ELECTRIC MOTOR |
| Rotation Direction for Which Designed | CLOCKWISE |
| Prime Mover Drive Shaft Bearing Type | BALL |
| Electrical Connection Type | TERMINAL |
| Air Flow Rate | 110.0 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 |
|---|---|
| 028865 PRIMARY | Kl Industries Inc (USA) |
| Reference | Meaning |
|---|---|
| 020-001301-001 | 7/2 Vendor item drawing reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple |
| 028865 | 5/9 Secondary reference U.S. Government activity |
NSN 4140-01-374-4672 is a Fan,tubeaxial, manufactured by Kl Industries Inc, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-374-4672 has 1 manufacturer part number on file: 028865 (Kl Industries Inc).
1 possible match (shared part number, not a government interchangeability claim): 5975-01-724-4509. Verify interchangeability with system specifications before substitution.
Key specifications for 028865: Mounting Facility Type and Quantity: 4 UNTHREADED HOLE(S); Inclosure Type: PARTIALLY INCLOSED; Voltage in Volts and Current Type: 12.0 DC; Drive Type: DIRECT. 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.