The Screw,shoulder, cataloged under National Stock Number 5305-01-150-4839, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 20 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-150-4839 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.093 INCHES MINIMUM AND 0.108 INCHES MAXIMUM IN |
| Fastener Length | 1.052 INCHES MINIMUM AND 1.062 INCHES MAXIMUM IN |
| Shoulder Length | 0.159 INCHES MINIMUM AND 0.161 INCHES MAXIMUM FIRST SHOULDER IN |
| Shoulder Length | 0.434 INCHES NOMINAL SECOND SHOULDER IN |
| Surface Treatment Document and Classification | QQ-P-35 TY 1 OR TY 2 OR TY 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Diameter | 0.498 INCHES MINIMUM AND 0.499 INCHES MAXIMUM FIRST SHOULDER IN |
| Shoulder Diameter | 0.373 INCHES MINIMUM AND 0.374 INCHES MAXIMUM SECOND SHOULDER IN |
| Thread Length | 0.407 INCHES NOMINAL IN |
| Shoulder Shape | ROUND ALL SHOULDERS |
| Hardness Rating | 36.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | PASSIVATE OVERALL |
| Internal Drive Style | TORQUE |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP 630 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM 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 |
|---|---|
| 2149788 | 3/9 Design control — primary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 5305-01-150-4839 is a Screw,shoulder, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-150-4839: Head Height: 0.093 INCHES MINIMUM AND 0.108 INCHES MAXIMUM IN; Fastener Length: 1.052 INCHES MINIMUM AND 1.062 INCHES MAXIMUM IN; Shoulder Length: 0.159 INCHES MINIMUM AND 0.161 INCHES MAXIMUM FIRST SHOULDER IN; Shoulder Length: 0.434 INCHES NOMINAL SECOND SHOULDER IN. 20 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.