The Screw,shoulder, cataloged under National Stock Number 5305-01-723-2485, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 22 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-723-2485 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Width Across Flats | 0.125 INCHES NOMINAL IN |
| Head Height | 0.177 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN |
| Fastener Length | 1.105 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN |
| Shoulder Length | 0.750 INCHES NOMINAL FIRST SHOULDER IN |
| Shoulder Length | 0.2460 INCHES MINIMUM AND 0.2480 INCHES MAXIMUM SECOND SHOULDER IN |
| Shoulder Diameter | 0.083 INCHES NOMINAL FIRST SHOULDER IN |
| Shoulder Diameter | 0.133 INCHES MINIMUM AND 0.142 INCHES MAXIMUM SECOND SHOULDER IN |
| Thread Length | 0.272 INCHES MINIMUM AND 0.292 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND SECOND SHOULDER |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material Document and Classification | QQ-N-286,SOLUTION ANNEALED AND AGE HARDENED FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.1900 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 8205-NAS-51975 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Chamfer Angle | 30.0 DEGREES MINIMUM AND 45.0 DEGREES MAXIMUM |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | NICKEL ALLOY K-500 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.357 INCHES MINIMUM AND 0.375 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 |
|---|---|
| MS51975K4 | 3/2 Design control — primary reference U.S. Government activity |
| MS51975K4 | 5/9 Secondary reference U.S. Government activity |
NSN 5305-01-723-2485 is a Screw,shoulder, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-723-2485: Width Across Flats: 0.125 INCHES NOMINAL IN; Head Height: 0.177 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN; Fastener Length: 1.105 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN; Shoulder Length: 0.750 INCHES NOMINAL FIRST SHOULDER IN. 22 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.