The Screw,machine, cataloged under National Stock Number 5305-01-646-9670, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Accurate Screw Machine Co. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-646-9670 |
| Primary Part Number | 17005-SS-12A-PAT |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Accurate Screw Machine Co |
| Status | ACTIVE |
| Head Height | 0.156 INCHES NOMINAL IN |
| Fastener Length | 0.532 INCHES NOMINAL IN |
| Chamfer Length | 0.031 DEGREES NOMINAL |
| Thread Length | 0.188 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.164 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL CORROSION RESISTING |
| Chamfer Angle | 45.0 DEGREES NOMINAL |
| Internal Drive Style | SLOT |
| Thread Quantity Per Inch | 32 |
| 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 |
|---|---|
| 17005-SS-12A-PAT PRIMARY | Accurate Screw Machine Co (USA) |
NSN 5305-01-646-9670 is a Screw,machine, manufactured by Accurate Screw Machine Co, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-646-9670 has 1 manufacturer part number on file: 17005-SS-12A-PAT (Accurate Screw Machine Co).
Key specifications for 17005-SS-12A-PAT: Head Height: 0.156 INCHES NOMINAL IN; Fastener Length: 0.532 INCHES NOMINAL IN; Chamfer Length: 0.031 DEGREES NOMINAL; Thread Length: 0.188 INCHES NOMINAL 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.