The Thumbscrew, cataloged under National Stock Number 5305-01-161-0345, 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17 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-161-0345 |
| Item Name | Thumbscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.190 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN |
| Point Length | 0.110 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN |
| Fastener Length | 0.790 INCHES MINIMUM AND 0.810 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.720 INCHES MINIMUM AND 0.740 INCHES MAXIMUM IN |
| Material Document and Classification | ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Point Chamfer Angle | 44.0 DEGREES MINIMUM AND 46.0 DEGREES MAXIMUM |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | KNURLED NO. 1 |
| Thread Direction | RIGHT-HAND |
| Point Style | FLAT |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 40 |
| Material | STEEL COMP 303SE OVERALL |
| Thread Series Designator | UNS |
| Head Diameter | 0.740 INCHES MINIMUM AND 0.760 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 |
|---|---|
| SM-C-807461 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-161-0345 is a Thumbscrew, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-161-0345: Head Height: 0.190 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN; Point Length: 0.110 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN; Fastener Length: 0.790 INCHES MINIMUM AND 0.810 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 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.