The Thumbscrew, cataloged under National Stock Number 5305-00-032-5449, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-00-032-5449 |
| Item Name | Thumbscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.500 INCHES NOMINAL IN |
| Fastener Length | 0.500 INCHES NOMINAL IN |
| Shoulder Length | 0.125 INCHES MINIMUM AND 0.130 INCHES MAXIMUM FIRST SHOULDER IN |
| Shoulder Diameter | 0.389 INCHES MINIMUM AND 0.391 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.375 INCHES MINIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | KNURLED NO. 3 |
| Thread Direction | RIGHT-HAND |
| Point Style | FLAT |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Material | ALUMINUM ALLOY OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 0.500 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 |
|---|---|
| 9-151-0167-10 | 3/9 Design control — primary reference Berkey Marketing Companies Div of Berkey Inc |
| 251-167B | 5/9 Secondary reference Berkey Marketing Companies Div of Berkey Inc |
NSN 5305-00-032-5449 is a Thumbscrew, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-00-032-5449: Head Height: 0.500 INCHES NOMINAL IN; Fastener Length: 0.500 INCHES NOMINAL IN; Shoulder Length: 0.125 INCHES MINIMUM AND 0.130 INCHES MAXIMUM FIRST SHOULDER IN; Shoulder Diameter: 0.389 INCHES MINIMUM AND 0.391 INCHES MAXIMUM FIRST SHOULDER IN. 15 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.