The Screw,machine, cataloged under National Stock Number 5305-01-476-2997, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-476-2997 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.221 INCHES MINIMUM AND 0.248 INCHES MAXIMUM IN |
| Screw Surface Treatment | CADMIUM |
| Fastener Length | 1.578 INCHES NOMINAL IN |
| Screw Material Document and Classification | MIL-S-5626 MIL SPEC SINGLE MATERIAL RESPONSE |
| Thread Length | 0.453 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.4375 INCHES IN |
| Head Style | FLAT FILLISTER |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL COMP 4140 |
| Internal Drive Style | TORQUE SET |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.615 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN |
| Screw Surface Treatment Document and Classification | QQ-P-416 FED SPEC 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 |
|---|---|
| NAS1127-18 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-476-2997 is a Screw,machine, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-476-2997: Head Height: 0.221 INCHES MINIMUM AND 0.248 INCHES MAXIMUM IN; Screw Surface Treatment: CADMIUM; Fastener Length: 1.578 INCHES NOMINAL IN; Screw Material Document and Classification: MIL-S-5626 MIL SPEC SINGLE MATERIAL RESPONSE. 15 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.