The Impeller,fan,axial, cataloged under National Stock Number 4140-00-635-0888, 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 Westinghouse Electric Corp. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4140-00-635-0888 |
| Primary Part Number | P28B8837 |
| Item Name | Impeller,fan,axial |
| FSC / FSG | 4140 / 41 — Fans, Air Circulators, and Blower Equipment |
| Manufacturer | Westinghouse Electric Corp |
| Status | ACTIVE |
| Mounting Hole Quantity | 3 |
| Style Designator | STRAIGHT TIP |
| Attachment Method | BOLT HOLE |
| Mounting Hole Diameter | 0.200 INCHES NOMINAL IN |
| Diameter | 6.700 INCHES NOMINAL IN |
| Blade Quantity | 8 |
| Mounting Bolt Circle Diameter | 2.563 INCHES NOMINAL IN |
| Hub Location | CENTER |
| Material | ALUMINUM OVERALL |
| 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 |
|---|---|
| P28B8837 | Westinghouse Electric Corp (USA) |
| 28P8837-1 | Hamilton Sundstrand Corporation Dba Collins Aerospace (USA) |
| Reference | Meaning |
|---|---|
| P28B8837 | 3/2 Design control — primary reference U.S. Government activity |
| P28B8837 | 5/9 Secondary reference U.S. Government activity |
NSN 4140-00-635-0888 is a Impeller,fan,axial, manufactured by Westinghouse Electric Corp, classified under FSC 4140, Fans, Air Circulators, and Blower Equipment. Status: active.
NSN 4140-00-635-0888 has 2 manufacturer part numbers on file: P28B8837 (Westinghouse Electric Corp), 28P8837-1 (Hamilton Sundstrand Corporation Dba Collins Aerospace).
Key specifications for P28B8837: Mounting Hole Quantity: 3; Style Designator: STRAIGHT TIP; Attachment Method: BOLT HOLE; Mounting Hole Diameter: 0.200 INCHES NOMINAL IN. 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.
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.