The Thumbscrew, cataloged under National Stock Number 5305-00-366-3104, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is General Motors Corp. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-00-366-3104 |
| Primary Part Number | 8104170 |
| Item Name | Thumbscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | General Motors Corp |
| Status | ACTIVE |
| Point Diameter | 0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN |
| Head Height | 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN |
| Point Length | 0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN |
| Fastener Length | 1.021 INCHES MINIMUM AND 1.041 INCHES MAXIMUM IN |
| Thread Length | 0.886 INCHES MINIMUM AND 0.926 INCHES MAXIMUM IN |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE OR AISI ASSN STD SINGLE MATERIAL RESPONSE OR SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | KNURLED NO. 1 |
| Thread Direction | RIGHT-HAND |
| Point Style | DOG |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP 1117 OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 0.740 INCHES MINIMUM AND 0.760 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 |
| Part Number | Manufacturer |
|---|---|
| 8104170 | General Motors Corp (USA) |
| Reference | Meaning |
|---|---|
| 8104170 | 3/9 Design control — primary reference General Motors Corp Electro-Motive Div |
NSN 5305-00-366-3104 is a Thumbscrew, manufactured by General Motors Corp, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-366-3104 has 1 manufacturer part number on file: 8104170 (General Motors Corp).
Key specifications for 8104170: Point Diameter: 0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN; Head Height: 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM IN; Point Length: 0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN; Fastener Length: 1.021 INCHES MINIMUM AND 1.041 INCHES MAXIMUM 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.