The Screw,shoulder, cataloged under National Stock Number 5305-00-486-0476, 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18 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-00-486-0476 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.108 INCHES MINIMUM AND 0.118 INCHES MAXIMUM IN |
| Fastener Length | 0.502 INCHES MINIMUM AND 0.512 INCHES MAXIMUM IN |
| Shoulder Length | 0.312 INCHES MINIMUM AND 0.322 INCHES MAXIMUM FIRST SHOULDER IN |
| Shoulder Diameter | 0.186 INCHES MINIMUM AND 0.189 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.185 INCHES MINIMUM AND 0.195 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Hardness Rating | 32.0 ROCKWELL C NOMINAL OVERALL |
| Shank Unthreaded Hole Diameter | 0.033 INCHES MINIMUM AND 0.043 INCHES MAXIMUM FIRST HOLE IN |
| Nominal Thread Diameter | 0.138 INCHES IN |
| Head Style | PAN NO. 2 |
| Thread Direction | RIGHT-HAND |
| Internal Drive Style | SLOT |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 40 |
| Material | STEEL COMP 416 OR STEEL COMP 416F OVERALL |
| Thread Series Designator | UNF |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 0.389 INCHES MINIMUM AND 0.399 INCHES MAXIMUM FIRST HOLE IN |
| Head Diameter | 0.370 INCHES MINIMUM AND 0.390 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 |
|---|---|
| MAG25538 | 3/9 Design control — primary reference Speco Corp |
NSN 5305-00-486-0476 is a Screw,shoulder, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-00-486-0476: Head Height: 0.108 INCHES MINIMUM AND 0.118 INCHES MAXIMUM IN; Fastener Length: 0.502 INCHES MINIMUM AND 0.512 INCHES MAXIMUM IN; Shoulder Length: 0.312 INCHES MINIMUM AND 0.322 INCHES MAXIMUM FIRST SHOULDER IN; Shoulder Diameter: 0.186 INCHES MINIMUM AND 0.189 INCHES MAXIMUM FIRST SHOULDER IN. 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.