The Setscrew, cataloged under National Stock Number 5305-01-674-1579, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is The American Society of Mechanical Engineers. Government technical data includes 18 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 | 5305-01-674-1579 |
| Primary Part Number | AES32U375B50EJ16B1 |
| Item Name | Setscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | The American Society of Mechanical Engineers |
| Status | ACTIVE |
| Point Diameter | 0.194 INCHES MINIMUM AND 0.212 INCHES MAXIMUM IN |
| Width Across Flats | 0.1875 INCHES NOMINAL IN |
| Fastener Length | 2.50 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | TRIVALENT CHROMATE/ZINC TYPE 8AT PER ASTM F1941 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 2.50 INCHES NOMINAL IN |
| Material Document and Classification | ASTM F912 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Point Chamfer Angle | 113.0 DEGREES MINIMUM AND 123.0 DEGREES MAXIMUM |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | HEADLESS (SETSCREW) |
| Thread Direction | RIGHT-HAND |
| Point Style | CUP |
| Specification/standard Data | 05047-ASME B18.24-2015 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Surface Treatment | CHROMATE ZINC OVERALL |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 16 |
| Material | STEEL 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 |
|---|---|
| AES32U375B50EJ16B1 PRIMARY | The American Society of Mechanical Engineers (USA) |
NSN 5305-01-674-1579 is a Setscrew, manufactured by The American Society of Mechanical Engineers, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-674-1579 has 1 manufacturer part number on file: AES32U375B50EJ16B1 (The American Society of Mechanical Engineers).
Key specifications for AES32U375B50EJ16B1: Point Diameter: 0.194 INCHES MINIMUM AND 0.212 INCHES MAXIMUM IN; Width Across Flats: 0.1875 INCHES NOMINAL IN; Fastener Length: 2.50 INCHES NOMINAL IN; Surface Treatment Document and Classification: TRIVALENT CHROMATE/ZINC TYPE 8AT PER ASTM F1941 ASSN STD SINGLE TREATMENT RESPONSE OVERALL. 18 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.