The Screw,shoulder, cataloged under National Stock Number 5305-01-655-5137, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Accurate Manufactured Products Group Inc. Government technical data includes 19 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-655-5137 |
| Primary Part Number | STR60251C08-PATCH |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Accurate Manufactured Products Group Inc |
| Status | ACTIVE |
| Width Across Flats | 0.156 INCHES NOMINAL IN |
| Head Height | 0.218 INCHES NOMINAL IN |
| Fastener Length | 0.656 INCHES NOMINAL IN |
| Shoulder Length | 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM GRIP IN |
| Handle Length | 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN |
| Shoulder Diameter | 0.312 INCHES NOMINAL GRIP IN |
| Thread Length | 0.437 INCHES NOMINAL IN |
| Shoulder Shape | ROUND GRIP |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | KNURLED NO. 1 |
| Thread Direction | RIGHT-HAND |
| Locking Feature | PATCH THREADS |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP 316 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Handle Diameter | 0.312 INCHES NOMINAL IN |
| Head Diameter | 0.437 INCHES NOMINAL IN |
| 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 |
|---|---|
| STR60251C08-PATCH PRIMARY | Accurate Manufactured Products Group Inc (USA) |
| 90311A163 | Mcmaster-Carr Supply Company (USA) |
NSN 5305-01-655-5137 is a Screw,shoulder, manufactured by Accurate Manufactured Products Group Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-655-5137 has 2 manufacturer part numbers on file: STR60251C08-PATCH (Accurate Manufactured Products Group Inc), 90311A163 (Mcmaster-Carr Supply Company).
Key specifications for STR60251C08-PATCH: Width Across Flats: 0.156 INCHES NOMINAL IN; Head Height: 0.218 INCHES NOMINAL IN; Fastener Length: 0.656 INCHES NOMINAL IN; Shoulder Length: 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM GRIP IN. 19 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.