The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-375-7151, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Walker Power Systems, Inc. Dba Tiernay Turbines. Government technical data includes 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-375-7151 |
| Primary Part Number | 212815-1 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Walker Power Systems, Inc. Dba Tiernay Turbines |
| Status | ACTIVE |
| Head Height | 0.120 INCHES NOMINAL IN |
| Fastener Length | 0.375 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | BS 3382 PART 2 NATIONAL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.297 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN |
| Material Document and Classification | BS 1768 GR1981 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.312 INCHES NOMINAL IN |
| Surface Treatment | ZINC OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5305-01-375-7151 is a Screw,cap,hexagon Head, manufactured by Walker Power Systems, Inc. Dba Tiernay Turbines, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-375-7151 has 2 manufacturer part numbers on file: 270-00905 (Lister Petter Ltd), 212815-1 (Walker Power Systems, Inc. Dba Tiernay Turbines).
1 possible match (shared part number, not a government interchangeability claim): 3120-01-444-6163. Verify interchangeability with system specifications before substitution.
Key specifications for 212815-1: Head Height: 0.120 INCHES NOMINAL IN; Fastener Length: 0.375 INCHES NOMINAL IN; Surface Treatment Document and Classification: BS 3382 PART 2 NATIONAL SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.297 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN. 14 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.