The Screw,machine, cataloged under National Stock Number 5305-01-239-5057, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-239-5057 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.038 INCHES MINIMUM AND 0.046 INCHES MAXIMUM IN |
| Fastener Length | 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN |
| Screw Material Document and Classification | ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Length | 0.184 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.073 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL COMP 303 |
| Internal Drive Style | SLOT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 64 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.130 INCHES MINIMUM AND 0.142 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 |
|---|---|
| 6574W12P006 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-239-5057 is a Screw,machine, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-239-5057: Head Height: 0.038 INCHES MINIMUM AND 0.046 INCHES MAXIMUM IN; Fastener Length: 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN; Screw Material Document and Classification: ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE; Thread Length: 0.184 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN. 13 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.