The Thumbscrew, cataloged under National Stock Number 5305-01-124-4451, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Naval Air Warfare Center Weapons Div. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-124-4451 |
| Primary Part Number | 4592569-1 |
| Item Name | Thumbscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Naval Air Warfare Center Weapons Div |
| Status | ACTIVE |
| Head Height | 0.400 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN |
| Fastener Length | 3.750 INCHES NOMINAL IN |
| Thread Length | 0.800 INCHES MINIMUM IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | THUMB NO. 7 |
| Thread Direction | RIGHT-HAND |
| Point Style | OVAL |
| Width Between Flats | 1.120 INCHES NOMINAL IN |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP 316 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 |
|---|---|
| 4592569-1 PRIMARY | Naval Air Warfare Center Weapons Div (USA) |
| Reference | Meaning |
|---|---|
| 4592569-1 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 4592477 ITEM 14 | 5/9 Secondary reference Naval Air Warfare Center Weapons Div |
NSN 5305-01-124-4451 is a Thumbscrew, manufactured by Naval Air Warfare Center Weapons Div, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-124-4451 has 1 manufacturer part number on file: 4592569-1 (Naval Air Warfare Center Weapons Div).
Key specifications for 4592569-1: Head Height: 0.400 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN; Fastener Length: 3.750 INCHES NOMINAL IN; Thread Length: 0.800 INCHES MINIMUM IN; Nominal Thread Diameter: 0.250 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.