The Screw,shoulder, cataloged under National Stock Number 5305-00-403-3458, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-00-403-3458 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.140 INCHES MINIMUM AND 0.170 INCHES MAXIMUM IN |
| Fastener Length | 2.240 INCHES NOMINAL IN |
| Shoulder Length | 1.850 INCHES NOMINAL FIRST SHOULDER IN |
| Thread Length | 0.330 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Shank Unthreaded Hole Diameter | 0.081 INCHES NOMINAL FIRST HOLE IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | FLAT CHAMFER |
| Minimum Tensile Strength | 180000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | SLOT |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Thread Series Designator | UNF |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 2.068 INCHES NOMINAL FIRST HOLE IN |
| Head Diameter | 0.500 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 |
|---|---|
| 41000528 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-00-403-3458 is a Screw,shoulder, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-00-403-3458: Head Height: 0.140 INCHES MINIMUM AND 0.170 INCHES MAXIMUM IN; Fastener Length: 2.240 INCHES NOMINAL IN; Shoulder Length: 1.850 INCHES NOMINAL FIRST SHOULDER IN; Thread Length: 0.330 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN. 15 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.