The Fan,centrifugal, cataloged under National Stock Number 4140-01-646-6831, 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 Automated Energy Systems Inc. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-01-646-6831 |
| Primary Part Number | SMJ66141.52112B6FT |
| Item Name | Fan,centrifugal |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Automated Energy Systems Inc |
| Status | ACTIVE |
| Outlet Location | BOTTOM AND CENTER AND TOP |
| Mounting Facility Type and Quantity | 1 BASE |
| Drive Type | DIRECT |
| Style Designator | FIXED |
| Height | 111.313 INCHES NOMINAL IN |
| Width | 22.375 INCHES NOMINAL IN |
| Material | STEEL HOUSING |
| Material | ALUMINUM BLADE |
| Rotation Direction for Which Designed | COUNTERCLOCKWISE |
| 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 |
|---|---|
| SMJ66141.52112B6FT | Automated Energy Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| SMJ66141.52112B6FT | 3/9 Design control — primary reference Eclipse Inc |
NSN 4140-01-646-6831 is a Fan,centrifugal, manufactured by Automated Energy Systems Inc, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-646-6831 has 1 manufacturer part number on file: SMJ66141.52112B6FT (Automated Energy Systems Inc).
Key specifications for SMJ66141.52112B6FT: Outlet Location: BOTTOM AND CENTER AND TOP; Mounting Facility Type and Quantity: 1 BASE; Drive Type: DIRECT; Style Designator: FIXED. 9 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 4140-01-646-6831 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.