The Screw,shoulder, cataloged under National Stock Number 5305-00-421-9241, 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18 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-00-421-9241 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.073 INCHES MINIMUM AND 0.083 INCHES MAXIMUM IN |
| Fastener Length | 0.773 INCHES MINIMUM AND 0.818 INCHES MAXIMUM IN |
| Shoulder Length | 0.302 INCHES MINIMUM AND 0.305 INCHES MAXIMUM FIRST SHOULDER IN |
| Shoulder Diameter | 0.186 INCHES MINIMUM AND 0.187 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.250 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material Document and Classification | 23610 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.125 INCHES IN |
| Features Provided | CASEHARDENED |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.248 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN |
| Surface Treatment | NICKEL OVERALL |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 40 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| 4001114 | 3/9 Design control — primary reference H & E Venture, Llc |
NSN 5305-00-421-9241 is a Screw,shoulder, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-00-421-9241: Head Height: 0.073 INCHES MINIMUM AND 0.083 INCHES MAXIMUM IN; Fastener Length: 0.773 INCHES MINIMUM AND 0.818 INCHES MAXIMUM IN; Shoulder Length: 0.302 INCHES MINIMUM AND 0.305 INCHES MAXIMUM FIRST SHOULDER IN; Shoulder Diameter: 0.186 INCHES MINIMUM AND 0.187 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.