The Thumbscrew, cataloged under National Stock Number 5305-01-140-9739, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-140-9739 |
| Item Name | Thumbscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Fastener Length | 1.480 INCHES MINIMUM AND 1.520 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35,TYPE 1,F16 METHOD 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.360 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN |
| First Diameter From Head | 0.190 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | KNURLED NO. 1 |
| Point Style | FLAT |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 1.100 INCHES MINIMUM AND 1.140 INCHES MAXIMUM IN |
| Externally Relieved Body Diameter Quantity | 1 |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Quantity Per Inch | 28 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| 2358992-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-140-9739 is a Thumbscrew, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-140-9739: Fastener Length: 1.480 INCHES MINIMUM AND 1.520 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35,TYPE 1,F16 METHOD 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.360 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN; First Diameter From Head: 0.190 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN. 13 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.