The Screw,machine, cataloged under National Stock Number 5305-00-207-5322, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Westinghouse Electric Corp. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-207-5322 |
| Primary Part Number | P28B8809-12 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Westinghouse Electric Corp |
| Status | ACTIVE |
| Head Height | 0.094 INCHES NOMINAL IN |
| Screw Surface Treatment | CADMIUM |
| Fastener Length | 2.125 INCHES NOMINAL IN |
| Thread Length | 2.125 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.138 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.250 INCHES NOMINAL IN |
| Screw Material | STEEL |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| P28B8809-12 PRIMARY | Westinghouse Electric Corp (USA) |
| Reference | Meaning |
|---|---|
| P28B8809-12 | 5/9 Secondary reference Westinghouse Electric Corp Power Generation-Generator Div |
NSN 5305-00-207-5322 is a Screw,machine, manufactured by Westinghouse Electric Corp, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-207-5322 has 1 manufacturer part number on file: P28B8809-12 (Westinghouse Electric Corp).
Key specifications for P28B8809-12: Head Height: 0.094 INCHES NOMINAL IN; Screw Surface Treatment: CADMIUM; Fastener Length: 2.125 INCHES NOMINAL IN; Thread Length: 2.125 INCHES MAXIMUM IN. 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.