The Screw,machine, cataloged under National Stock Number 5305-01-535-0296, 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15 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-535-0296 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.162 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN |
| Screw Surface Treatment | OXIDE |
| Fastener Length | 0.312 INCHES MAXIMUM IN |
| Screw Material Document and Classification | QQ-S-763 FED SPEC ALL MATERIAL RESPONSES |
| Thread Length | 0.312 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | PAN |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 80205-NAS-51958 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Screw Material | STEEL COMP 304 AND STEEL COMP 316 |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 28 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.473 INCHES MINIMUM AND 0.492 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 |
|---|---|
| MS51958-76B | 3/2 Design control — primary reference U.S. Government activity |
| MS51958-76B | 5/9 Secondary reference U.S. Government activity |
NSN 5305-01-535-0296 is a Screw,machine, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-535-0296: Head Height: 0.162 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN; Screw Surface Treatment: OXIDE; Fastener Length: 0.312 INCHES MAXIMUM IN; Screw Material Document and Classification: QQ-S-763 FED SPEC ALL MATERIAL RESPONSES. 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.