The Screw,shoulder, cataloged under National Stock Number 5305-00-421-3569, 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18 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-421-3569 |
| Item Name | Screw,shoulder |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.069 INCHES NOMINAL IN |
| Fastener Length | 0.400 INCHES MINIMUM AND 0.401 INCHES MAXIMUM IN |
| Shoulder Length | 0.119 INCHES MINIMUM AND 0.120 INCHES MAXIMUM FIRST SHOULDER IN |
| Surface Treatment Document and Classification | 20,FSCM 23610 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Diameter | 0.187 INCHES NOMINAL FIRST SHOULDER IN |
| Thread Length | 0.172 INCHES MINIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material Document and Classification | AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.138 INCHES IN |
| Features Provided | CASEHARDENED |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.312 INCHES NOMINAL IN |
| Surface Treatment | NICKEL OVERALL |
| Internal Drive Style | W/O INTERNAL DRIVE |
| Thread Quantity Per Inch | 40 |
| Material | STEEL COMP 1213 OVERALL |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| 1090971 | 3/9 Design control — primary reference H & E Venture, Llc |
NSN 5305-00-421-3569 is a Screw,shoulder, classified under FSC 5305, Screws. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5930-01-694-6562. Verify interchangeability with system specifications before substitution.
Key specifications for 5305-00-421-3569: Head Height: 0.069 INCHES NOMINAL IN; Fastener Length: 0.400 INCHES MINIMUM AND 0.401 INCHES MAXIMUM IN; Shoulder Length: 0.119 INCHES MINIMUM AND 0.120 INCHES MAXIMUM FIRST SHOULDER IN; Surface Treatment Document and Classification: 20,FSCM 23610 MFR REF SINGLE TREATMENT RESPONSE OVERALL. 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.