The Housing,centrifugal Fan, cataloged under National Stock Number 4140-01-503-5743, 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 Dh Instruments Inc.. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-503-5743 |
| Primary Part Number | 401450 |
| Item Name | Housing,centrifugal Fan |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Dh Instruments Inc. |
| Status | ACTIVE |
| Prime Mover for Which Designed | ELECTRIC MOTOR |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 4140-01-503-5743 is a Housing,centrifugal Fan, manufactured by Dh Instruments Inc., classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-503-5743 has 2 manufacturer part numbers on file: 401450 (Dh Instruments Inc.), U02903 (Dh Instruments Inc.).
Key specifications for 401450: Special Features: USES 4 BOLT, WASHER AND NUT ASSEMBLIES TO MOUNT FAN TO HOUSING UNIT; HAS TWO 7.087 INCH WIRE TERMINALS FOR POWER CONNECTIONS IN; Prime Mover for Which Designed: ELECTRIC MOTOR; End Item Identification: HYD PRESSURE;W/S:AVIATION NIGHT VISION IMAGING SYS, AN/AVS-6. 1 specification is 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.