The Fan,centrifugal, cataloged under National Stock Number 4140-00-040-2084, 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 U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 13 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-00-040-2084 |
| Primary Part Number | 8328221 |
| Item Name | Fan,centrifugal |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Outlet Location | TOP |
| Outlet Inside Height | 3.922 INCHES NOMINAL IN |
| Length | 3.657 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 24.0 DC |
| Drive Type | DIRECT |
| Style Designator | FIXED, RECTANGULAR OUTLETS |
| Features Provided | SAFETY IMPELLER GUARD |
| Discharge Direction | HORIZONTAL |
| Outlet Inside Width | 3.594 INCHES NOMINAL IN |
| Width | 7.510 INCHES NOMINAL IN |
| Prime Mover Type | ELECTRIC MOTOR |
| Rotation Direction for Which Designed | CLOCKWISE |
| Electrical Connection Type | WIRE LEAD |
| 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 |
|---|---|
| 8328221 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| G488051 | 5/9 Secondary reference Stewart-Warner Corporation |
| 677R3 | 5/9 Secondary reference Diamond Reo Truck Co |
| G488051 | 3/9 Design control — primary reference Advanced Computer Technology Inc Dba a C T |
| 99954 | 5/9 Secondary reference Sheller-Globe Corp Superior-Lima Div |
NSN 4140-00-040-2084 is a Fan,centrifugal, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-00-040-2084 has 1 manufacturer part number on file: 8328221 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 8328221: Outlet Location: TOP; Outlet Inside Height: 3.922 INCHES NOMINAL IN; Length: 3.657 INCHES NOMINAL IN; Voltage in Volts and Current Type: 24.0 DC. 13 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.