The Thumbscrew, cataloged under National Stock Number 5305-01-019-4305, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-019-4305 |
| Item Name | Thumbscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN |
| Fastener Length | 0.922 INCHES MINIMUM AND 0.954 INCHES MAXIMUM IN |
| Thread Length | 0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN |
| First Diameter From Head | 0.115 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.531 INCHES MINIMUM AND 0.595 INCHES MAXIMUM IN |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY PACKAGING WHICH MUST CONFORM TO SHIPS PARTS CONTROLCENTER SPECIAL QUALITY CONTROL PROVISIONS. |
| Head Diameter | 0.433 INCHES MINIMUM AND 0.443 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 |
|---|---|
| 6140U-SS-0832 | 5/9 Secondary reference New Haven Mfg Corp Amatom Electronic Hardware Div |
| 6140U-SS-0832 | 3/1 Design control — primary reference Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware |
NSN 5305-01-019-4305 is a Thumbscrew, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-019-4305: Head Height: 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN; Fastener Length: 0.922 INCHES MINIMUM AND 0.954 INCHES MAXIMUM IN; Thread Length: 0.359 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN; First Diameter From Head: 0.115 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN. 7 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.