The Fan,centrifugal, cataloged under National Stock Number 1660-01-602-8721, is classified within Federal Supply Class 1660 (Aircraft Air Conditioning, Heating, and Pressurizing Equipment) of the Aircraft Components and Accessories group. The manufacturer of record is The Boeing Company. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 1660-01-602-8721 |
| Primary Part Number | FE492-0004-0003 |
| Item Name | Fan,centrifugal |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | The Boeing Company |
| Status | ACTIVE |
| Length | 2.12 INCHES NOMINAL IN |
| Drive Type | DIRECT |
| Style Designator | FIXED, INVERTED, RECTANGULAR OUTLET |
| Height | 3.00 INCHES NOMINAL IN |
| Material | STEEL BLADE |
| 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 |
|---|---|
| FE492-0004-0003 PRIMARY | The Boeing Company (USA) |
| Reference | Meaning |
|---|---|
| 041389 | 3/2 Design control — primary reference U.S. Government activity |
NSN 1660-01-602-8721 is a Fan,centrifugal, manufactured by The Boeing Company, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-01-602-8721 has 1 manufacturer part number on file: FE492-0004-0003 (The Boeing Company).
1 possible match (shared part number, not a government interchangeability claim): 5905-01-623-4757. Verify interchangeability with system specifications before substitution.
Key specifications for FE492-0004-0003: Length: 2.12 INCHES NOMINAL IN; Drive Type: DIRECT; Style Designator: FIXED, INVERTED, RECTANGULAR OUTLET; Height: 3.00 INCHES NOMINAL IN. 5 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.