The Setscrew, cataloged under National Stock Number 5305-01-691-9844, 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 14 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-691-9844 |
| Primary Part Number | AES41U500A50UG7A11 |
| Item Name | Setscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | The American Society of Mechanical Engineers |
| Status | ACTIVE |
| Point Diameter | 0.344 INCHES MAXIMUM IN |
| Width Across Flats | 0.250 INCHES NOMINAL IN |
| Point Length | 0.130 INCHES MAXIMUM IN |
| Fastener Length | 1.500 INCHES NOMINAL IN |
| Point Chamfer Angle | 90.0 DEGREES MINIMUM |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Head Style | HEADLESS (SETSCREW) |
| Thread Direction | RIGHT-HAND |
| Point Style | HALF DOG |
| Internal Drive Style | HEXAGON |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 13 |
| Material | NICKEL ALLOY R-405 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 |
|---|---|
| AES41U500A50UG7A11 | The American Society of Mechanical Engineers (USA) |
| 845-8616935 ITEM NO 151 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| AES41U500A50UG7A11 | 5/2 Secondary reference U.S. Government activity |
| ASME B18.24 | 3/1 Design control — primary reference The American Society of Mechanical Engineers |
NSN 5305-01-691-9844 is a Setscrew, manufactured by The American Society of Mechanical Engineers, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-691-9844 has 2 manufacturer part numbers on file: AES41U500A50UG7A11 (The American Society of Mechanical Engineers), 845-8616935 ITEM NO 151 (Naval Sea Systems Command).
Key specifications for AES41U500A50UG7A11: Point Diameter: 0.344 INCHES MAXIMUM IN; Width Across Flats: 0.250 INCHES NOMINAL IN; Point Length: 0.130 INCHES MAXIMUM IN; Fastener Length: 1.500 INCHES NOMINAL IN. 14 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.