The Screw,machine, cataloged under National Stock Number 5305-00-421-3568, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-00-421-3568 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.056 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN |
| Screw Surface Treatment | CADMIUM |
| Fastener Length | 0.281 INCHES MAXIMUM IN |
| Thread Length | 0.281 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.138 INCHES IN |
| Features Provided | CASEHARDENED |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Internal Drive Style | SLOT |
| Thread Quantity Per Inch | 40 |
| Thread Series Designator | UNF |
| Reference Number Differentiating Characteristics | NAVORD OD36190 |
| Head Diameter | 0.190 INCHES MINIMUM AND 0.200 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 |
|---|---|
| 1090524 | 3/1 Design control — primary reference H & E Venture, Llc |
NSN 5305-00-421-3568 is a Screw,machine, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-00-421-3568: Head Height: 0.056 INCHES MINIMUM AND 0.062 INCHES MAXIMUM IN; Screw Surface Treatment: CADMIUM; Fastener Length: 0.281 INCHES MAXIMUM IN; Thread Length: 0.281 INCHES MAXIMUM IN. 13 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.