The Thumbscrew, cataloged under National Stock Number 5305-00-147-6392, 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17 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-00-147-6392 |
| Item Name | Thumbscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.480 INCHES MINIMUM AND 0.554 INCHES MAXIMUM IN |
| Fastener Length | 2.906 INCHES MINIMUM AND 3.000 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.530 INCHES MINIMUM AND 0.590 INCHES MAXIMUM IN |
| First Diameter From Head | 0.175 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | THUMB NO. 7 |
| Thread Direction | RIGHT-HAND |
| Point Style | FLAT |
| Width Between Flats | 1.350 INCHES MINIMUM AND 1.410 INCHES MAXIMUM IN |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 2.316 INCHES MINIMUM AND 2.470 INCHES MAXIMUM IN |
| Externally Relieved Body Diameter Quantity | 1 |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP 304L OR STEEL COMP 316L OR STEEL COMP 302 OR STEEL COMP 347 OR STEEL COMP 321 OR STEEL COMP 317 OR STEEL COMP 316 OR STEEL COMP 310 OR STEEL COMP 309 OR STEEL COMP 305 OR STEEL COMP 304 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 |
|---|---|
| 118B2601 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-00-147-6392 is a Thumbscrew, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-00-147-6392: Head Height: 0.480 INCHES MINIMUM AND 0.554 INCHES MAXIMUM IN; Fastener Length: 2.906 INCHES MINIMUM AND 3.000 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.530 INCHES MINIMUM AND 0.590 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.