The Thumbscrew, cataloged under National Stock Number 5305-01-653-6415, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-653-6415 |
| Item Name | Thumbscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.900 INCHES MINIMUM AND 0.910 INCHES MAXIMUM IN |
| Fastener Length | 2.505 INCHES NOMINAL IN |
| Thread Length | 1.605 INCHES MINIMUM IN |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Head Style | THUMB NO. 3 |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 1.880 INCHES NOMINAL IN |
| Thread Class | 1A A |
| Thread Quantity Per Inch | 13 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| 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 |
|---|---|
| 900152 | 3/2 Design control — primary reference U.S. Government activity |
| 900152 NGPROV14 | D/9 Drawing number reference only U.S. Government activity |
NSN 5305-01-653-6415 is a Thumbscrew, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-653-6415: Head Height: 0.900 INCHES MINIMUM AND 0.910 INCHES MAXIMUM IN; Fastener Length: 2.505 INCHES NOMINAL IN; Thread Length: 1.605 INCHES MINIMUM IN; Nominal Thread Diameter: 0.500 INCHES IN. 11 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.