The Setscrew, cataloged under National Stock Number 5305-01-691-4648, 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 19 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 | 5305-01-691-4648 |
| Primary Part Number | AES40K375750EJ1L71 |
| 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 | 0.750 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-DTL-13924,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.750 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 | FLAT |
| Specification/standard Data | 05047-ASME B18.24-2015 NATIONAL STD/SPEC |
| Color | BLACK OVERALL |
| Surface Treatment | OXIDE OVERALL |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| AES40K375750EJ1L71 PRIMARY | The American Society of Mechanical Engineers (USA) |
NSN 5305-01-691-4648 is a Setscrew, manufactured by The American Society of Mechanical Engineers, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-691-4648 has 1 manufacturer part number on file: AES40K375750EJ1L71 (The American Society of Mechanical Engineers).
Key specifications for AES40K375750EJ1L71: Point Diameter: 0.194 INCHES MINIMUM AND 0.212 INCHES MAXIMUM IN; Width Across Flats: 0.1875 INCHES NOMINAL IN; Fastener Length: 0.750 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-DTL-13924,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL. 19 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.