The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-516-9268, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Mcmaster-Carr Supply Company. Government technical data includes 14 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 | 5305-01-516-9268 |
| Primary Part Number | 91286A330 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Mcmaster-Carr Supply Company |
| Status | ACTIVE |
| Head Height | 0.312 INCHES NOMINAL IN |
| Fastener Length | 2.500 INCHES NOMINAL IN |
| Hardness Rating | 33.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | SAEJ429 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.750 INCHES NOMINAL IN |
| Color | SILVER OVERALL |
| Minimum Tensile Strength | 150000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 13 |
| 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 |
|---|---|
| 91286A330 PRIMARY | Mcmaster-Carr Supply Company (USA) |
NSN 5305-01-516-9268 is a Screw,cap,hexagon Head, manufactured by Mcmaster-Carr Supply Company, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-516-9268 has 1 manufacturer part number on file: 91286A330 (Mcmaster-Carr Supply Company).
Key specifications for 91286A330: Head Height: 0.312 INCHES NOMINAL IN; Fastener Length: 2.500 INCHES NOMINAL IN; Hardness Rating: 33.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM OVERALL; Material Document and Classification: SAEJ429 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 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.