The Screw,shoulder, cataloged under National Stock Number 5305-01-370-6956, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 18 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-370-6956 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.210 INCHES NOMINAL IN |
| Fastener Length | 2.000 INCHES NOMINAL IN |
| Shoulder Length | 1.500 INCHES NOMINAL FIRST SHOULDER IN |
| Surface Treatment Document and Classification | MIL-A-8625 TY2 LA1 MIL SPEC SINGLE TREATMENT RESPONSE OR MIL-A-8625 TY1 CL1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Diameter | 0.3070 INCHES MINIMUM AND 0.3080 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.500 INCHES NOMINAL IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material Document and Classification | QQ-A-200/11 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-225/9 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-250/12 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | ANODIZE OVERALL |
| Internal Drive Style | TORQUE |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | ALUMINUM ALLOY 7075 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.425 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 |
| Reference | Meaning |
|---|---|
| 87501210-001 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-370-6956 is a Screw,shoulder, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-370-6956: Head Height: 0.210 INCHES NOMINAL IN; Fastener Length: 2.000 INCHES NOMINAL IN; Shoulder Length: 1.500 INCHES NOMINAL FIRST SHOULDER IN; Surface Treatment Document and Classification: MIL-A-8625 TY2 LA1 MIL SPEC SINGLE TREATMENT RESPONSE OR MIL-A-8625 TY1 CL1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL. 18 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.