The Thumbscrew, cataloged under National Stock Number 5305-00-796-9579, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Us Army Aviation and Missile Command. Government technical data includes 15 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-796-9579 |
| Primary Part Number | 8173505 |
| Item Name | Thumbscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| Head Height | 0.438 INCHES NOMINAL IN |
| Point Length | 0.156 INCHES NOMINAL IN |
| Fastener Length | 2.188 INCHES NOMINAL IN |
| Thread Length | 0.844 INCHES NOMINAL IN |
| Point Chamfer Angle | 90.0 DEGREES MINIMUM |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | KNURLED NO. 1 |
| Thread Direction | RIGHT-HAND |
| Point Style | CONE |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL COMP 303 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 1.250 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 |
| Part Number | Manufacturer |
|---|---|
| 8173505 PRIMARY | Us Army Aviation and Missile Command (USA) |
NSN 5305-00-796-9579 is a Thumbscrew, manufactured by Us Army Aviation and Missile Command, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-796-9579 has 1 manufacturer part number on file: 8173505 (Us Army Aviation and Missile Command).
Key specifications for 8173505: Head Height: 0.438 INCHES NOMINAL IN; Point Length: 0.156 INCHES NOMINAL IN; Fastener Length: 2.188 INCHES NOMINAL IN; Thread Length: 0.844 INCHES NOMINAL 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.