The Fan,centrifugal, cataloged under National Stock Number 4140-01-176-6331, 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 Lockheed Martin Corporation Div Rotary and Mission Systems. Government technical data includes 17 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4140-01-176-6331 |
| Primary Part Number | 6135302-2 |
| Item Name | Fan,centrifugal |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Lockheed Martin Corporation Div Rotary and Mission Systems |
| Status | ACTIVE |
| Outlet Location | BOTTOM |
| Phase | THREE |
| Outlet Inside Height | 2.660 INCHES NOMINAL IN |
| Length | 6.250 INCHES NOMINAL IN |
| Voltage in Volts and Current Type | 115.0 AC |
| Drive Type | DIRECT |
| Quantity | 1 |
| Style Designator | FIXED, RECTANGULAR OUTLETS |
| Diameter | 3.880 INCHES NOMINAL IN |
| Discharge Direction | VERTICAL DOWN |
| Outlet Inside Width | 3.810 INCHES NOMINAL IN |
| Height | 6.880 INCHES NOMINAL IN |
| Operating Speed at Rated Capacity in RPM | 5600.0 |
| Width | 6.620 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| Prime Mover Type | ELECTRIC MOTOR |
| Rotation Direction for Which Designed | COUNTERCLOCKWISE |
| 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 |
|---|---|
| 6135302-2 PRIMARY | Lockheed Martin Corporation Div Rotary and Mission Systems (USA) |
| Reference | Meaning |
|---|---|
| 034157 | 1/2 Source control — Government-approved source U.S. Government activity |
NSN 4140-01-176-6331 is a Fan,centrifugal, manufactured by Lockheed Martin Corporation Div Rotary and Mission Systems, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-01-176-6331 has 1 manufacturer part number on file: 6135302-2 (Lockheed Martin Corporation Div Rotary and Mission Systems).
Key specifications for 6135302-2: Outlet Location: BOTTOM; Phase: THREE; Outlet Inside Height: 2.660 INCHES NOMINAL IN; Length: 6.250 INCHES NOMINAL IN. 17 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.