The Housing,centrifugal Fan, cataloged under National Stock Number 4140-01-368-3539, 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 A&b Foundry, Llc Dba A&b Foundry, Machining & Fabrications. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-368-3539 |
| Primary Part Number | ABF202320647 |
| Item Name | Housing,centrifugal Fan |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | A&b Foundry, Llc Dba A&b Foundry, Machining & Fabrications |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 742657 | Hamilton Sundstrand Corporation Dba Collins Aerospace (USA) |
| ABF202320647 PRIMARY | A&b Foundry, Llc Dba A&b Foundry, Machining & Fabrications (USA) |
| Reference | Meaning |
|---|---|
| 742657 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4140-01-368-3539 is a Housing,centrifugal Fan, manufactured by A&b Foundry, Llc Dba A&b Foundry, Machining & Fabrications, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-368-3539 has 2 manufacturer part numbers on file: 742657 (Hamilton Sundstrand Corporation Dba Collins Aerospace), ABF202320647 (A&b Foundry, Llc Dba A&b Foundry, Machining & Fabrications).
Key specifications for ABF202320647: Part Name Assigned by Controlling Agency: HOUSING ASSEMBLY FAN; End Item Identification: ECU. 0 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.
NSN 4140-01-368-3539 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.