The Setscrew, cataloged under National Stock Number 5305-01-654-1861, 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 13 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-654-1861 |
| Primary Part Number | AES21K250500ED8A11 |
| Item Name | Setscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | The American Society of Mechanical Engineers |
| Status | ACTIVE |
| Point Diameter | 0.118 INCHES MINIMUM AND 0.132 INCHES MAXIMUM IN |
| Width Across Flats | 0.125 INCHES NOMINAL IN |
| Fastener Length | 0.500 INCHES NOMINAL IN |
| Point Chamfer Angle | 113.0 DEGREES MINIMUM AND 123.0 DEGREES MAXIMUM |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | HEADLESS (SETSCREW) |
| Thread Direction | RIGHT-HAND |
| Point Style | CUP |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP 302 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 |
|---|---|
| 92311A560 | Mcmaster-Carr Supply Co (USA) |
| AES21K250500ED8A11 PRIMARY | The American Society of Mechanical Engineers (USA) |
NSN 5305-01-654-1861 is a Setscrew, manufactured by The American Society of Mechanical Engineers, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-654-1861 has 2 manufacturer part numbers on file: 92311A560 (Mcmaster-Carr Supply Co), AES21K250500ED8A11 (The American Society of Mechanical Engineers).
Key specifications for AES21K250500ED8A11: Point Diameter: 0.118 INCHES MINIMUM AND 0.132 INCHES MAXIMUM IN; Width Across Flats: 0.125 INCHES NOMINAL IN; Fastener Length: 0.500 INCHES NOMINAL IN; Point Chamfer Angle: 113.0 DEGREES MINIMUM AND 123.0 DEGREES MAXIMUM. 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.