The Thumbscrew, cataloged under National Stock Number 5305-01-345-4705, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is General Dynamics Land Systems Canadacorp. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-345-4705 |
| Primary Part Number | L835028A0657 |
| Item Name | Thumbscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | General Dynamics Land Systems Canadacorp |
| Status | ACTIVE |
| Head Height | 0.650 INCHES MINIMUM AND 0.790 INCHES MAXIMUM IN |
| Fastener Length | 1.485 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN |
| Thread Length | 1.389 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | WING NO. 3 |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 1.310 INCHES MINIMUM AND 1.440 INCHES MAXIMUM IN |
| Surface Treatment | CHROMATE ZINC OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL 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 |
| Part Number | Manufacturer |
|---|---|
| L835028A0657 PRIMARY | General Dynamics Land Systems Canadacorp (CAN) |
| Reference | Meaning |
|---|---|
| 835028A0657 | 5/9 Secondary reference Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service |
NSN 5305-01-345-4705 is a Thumbscrew, manufactured by General Dynamics Land Systems Canadacorp, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-345-4705 has 1 manufacturer part number on file: L835028A0657 (General Dynamics Land Systems Canadacorp).
Key specifications for L835028A0657: Head Height: 0.650 INCHES MINIMUM AND 0.790 INCHES MAXIMUM IN; Fastener Length: 1.485 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN; Thread Length: 1.389 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN; Nominal Thread Diameter: 0.312 INCHES IN. 12 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.