The Screw,machine, cataloged under National Stock Number 5305-01-331-4917, 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15 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-331-4917 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Screw Surface Treatment | CADMIUM |
| Fastener Length | 0.275 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN |
| Thread Length | 0.182 INCHES MINIMUM AND 0.275 INCHES MAXIMUM IN |
| Locking Feature Material | PLASTIC POLYAMIDE NYLON |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Locking Feature | STRIP |
| Screw Material | STEEL |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Countersink Angle | 80.0 DEGREES MINIMUM |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.292 INCHES MINIMUM 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 |
|---|---|
| MS35190-251L | 5/9 Secondary reference U.S. Government activity |
| MS35190-251L | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-331-4917 is a Screw,machine, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-331-4917: Screw Surface Treatment: CADMIUM; Fastener Length: 0.275 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN; Thread Length: 0.182 INCHES MINIMUM AND 0.275 INCHES MAXIMUM IN; Locking Feature Material: PLASTIC POLYAMIDE NYLON. 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.