The Screw,machine, cataloged under National Stock Number 5305-01-383-4080, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 18 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-383-4080 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.162 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN |
| Bearing Surface of Head Surface Treatment Document and Classification | ASTMB633 TY 2 ASSN STD SINGLE TREATMENT RESPONSE |
| Screw Surface Treatment | ZINC AND CHROMATE |
| Fastener Length | 0.969 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN |
| Screw Material Document and Classification | ASTM A29 GRADE 1015 ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Length | 0.800 INCHES NOMINAL IN |
| Bearing Surface of Head Surface Treatment | ZINC AND CHROMATE |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | PAN |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL COMP 1015 |
| Minimum Tensile Strength | 60000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | CROSS RECESS TYPE III |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 20 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.483 INCHES MINIMUM AND 0.492 INCHES MAXIMUM IN |
| Screw Surface Treatment Document and Classification | ASTM B633 TY 2 ASSN STD 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 |
|---|---|
| MS51492-23 | 2/2 Government specification standardization U.S. Government activity |
NSN 5305-01-383-4080 is a Screw,machine, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-383-4080: Head Height: 0.162 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN; Bearing Surface of Head Surface Treatment Document and Classification: ASTMB633 TY 2 ASSN STD SINGLE TREATMENT RESPONSE; Screw Surface Treatment: ZINC AND CHROMATE; Fastener Length: 0.969 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN. 18 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.