The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-497-6419, 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 11 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-497-6419 |
| Primary Part Number | AES01C625A50AW9A91 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | The American Society of Mechanical Engineers |
| Status | ACTIVE |
| Head Height | 0.378 INCHES MINIMUM AND 0.444 INCHES MAXIMUM IN |
| Fastener Length | 1.500 INCHES NOMINAL IN |
| Thread Length | 1.500 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.620 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.906 INCHES MINIMUM AND 0.938 INCHES MAXIMUM IN |
| Surface Treatment | ZINC OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 11 |
| 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 |
|---|---|
| AES01C625A50AW9A91 PRIMARY | The American Society of Mechanical Engineers (USA) |
| Reference | Meaning |
|---|---|
| B1821BH062C150N | 5/9 Secondary reference U.S. Government activity |
| ASME B18.2.1 | 5/1 Secondary reference The American Society of Mechanical Engineers |
NSN 5305-01-497-6419 is a Screw,cap,hexagon Head, manufactured by The American Society of Mechanical Engineers, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-497-6419 has 1 manufacturer part number on file: AES01C625A50AW9A91 (The American Society of Mechanical Engineers).
Key specifications for AES01C625A50AW9A91: Head Height: 0.378 INCHES MINIMUM AND 0.444 INCHES MAXIMUM IN; Fastener Length: 1.500 INCHES NOMINAL IN; Thread Length: 1.500 INCHES NOMINAL IN; Nominal Thread Diameter: 0.620 INCHES IN. 11 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.