The Setscrew, cataloged under National Stock Number 5305-00-342-4647, 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 13 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 | 5305-00-342-4647 |
| Primary Part Number | 8176493 |
| Item Name | Setscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| Width Across Flats | 0.500 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| Fastener Length | 1.250 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 FED SPEC 1ST TREATMENT RESPONSE OVERALL |
| Thread Length | 1.250 INCHES MINIMUM IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | HEADLESS (SETSCREW) |
| Thread Direction | RIGHT-HAND |
| Point Style | FLAT |
| Surface Treatment | CADMIUM OR PASSIVATE OVERALL |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| 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 |
|---|---|
| 8176493 PRIMARY | Us Army Aviation and Missile Command (USA) |
NSN 5305-00-342-4647 is a Setscrew, manufactured by Us Army Aviation and Missile Command, classified under FSC 5305, Screws. Status: active.
NSN 5305-00-342-4647 has 1 manufacturer part number on file: 8176493 (Us Army Aviation and Missile Command).
Key specifications for 8176493: Width Across Flats: 0.500 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN; Fastener Length: 1.250 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC 1ST TREATMENT RESPONSE OVERALL; Thread Length: 1.250 INCHES MINIMUM IN. 13 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.