The Screw,machine, cataloged under National Stock Number 5305-00-421-9231, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-00-421-9231 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.079 INCHES MINIMUM AND 0.094 INCHES MAXIMUM IN |
| Screw Surface Treatment | CADMIUM |
| Fastener Length | 0.469 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| Thread Length | 0.376 INCHES MINIMUM IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Thread Series Designator | UNF |
| Head Diameter | 0.292 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN |
| Screw Surface Treatment Document and Classification | 50,FSCM 23610 MFR REF SINGLE TREATMENT RESPONSE |
| 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 |
|---|---|
| 4000676 | 3/9 Design control — primary reference H & E Venture, Llc |
NSN 5305-00-421-9231 is a Screw,machine, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-00-421-9231: Head Height: 0.079 INCHES MINIMUM AND 0.094 INCHES MAXIMUM IN; Screw Surface Treatment: CADMIUM; Fastener Length: 0.469 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN; Thread Length: 0.376 INCHES MINIMUM IN. 14 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.