The Thumbscrew, cataloged under National Stock Number 5305-01-059-4323, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-059-4323 |
| Item Name | Thumbscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Point Diameter | 0.230 INCHES NOMINAL IN |
| Head Height | 0.400 INCHES NOMINAL IN |
| Point Length | 0.500 INCHES NOMINAL IN |
| Fastener Length | 3.200 INCHES NOMINAL IN |
| Thread Length | 2.400 INCHES NOMINAL IN |
| Material Document and Classification | QQ-S-763 COND A FED SPEC ALL MATERIAL RESPONSES OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | KNURLED NO. 1 |
| Thread Direction | RIGHT-HAND |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL COMP 302 OR STEEL COMP 303 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 1.000 INCHES NOMINAL 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 |
|---|---|
| 16A74028-73 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-059-4323 is a Thumbscrew, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-059-4323: Point Diameter: 0.230 INCHES NOMINAL IN; Head Height: 0.400 INCHES NOMINAL IN; Point Length: 0.500 INCHES NOMINAL IN; Fastener Length: 3.200 INCHES NOMINAL IN. 14 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.