The Screw,machine, cataloged under National Stock Number 5305-00-151-0591, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-00-151-0591 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.175 INCHES NOMINAL IN |
| Screw Surface Treatment | CADMIUM |
| Fastener Length | 1.313 INCHES MINIMUM AND 1.375 INCHES MAXIMUM IN |
| Thread Length | 1.242 INCHES MINIMUM AND 1.304 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | ROUND |
| Thread Direction | RIGHT-HAND |
| Departure From Cited Designator | AS MOD BY CROSS RECESS DRIVE STYLE |
| Nondefinitive Spec/std Data | 3 TYPE AND 1C STYLE |
| Screw Material | STEEL COMP 1010 |
| Minimum Tensile Strength | 55000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 28 |
| Thread Series Designator | UNF |
| Head Diameter | 0.443 INCHES MINIMUM AND 0.472 INCHES MAXIMUM IN |
| Screw Surface Treatment Document and Classification | QQ-P-416,TY 1,CL 3 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 |
|---|---|
| AN520-416R22 | 2/2 Government specification standardization U.S. Government activity |
NSN 5305-00-151-0591 is a Screw,machine, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-00-151-0591: Head Height: 0.175 INCHES NOMINAL IN; Screw Surface Treatment: CADMIUM; Fastener Length: 1.313 INCHES MINIMUM AND 1.375 INCHES MAXIMUM IN; Thread Length: 1.242 INCHES MINIMUM AND 1.304 INCHES MAXIMUM IN. 17 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.