The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-582-2912, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Mcmaster-Carr Supply Co. Government technical data includes 12 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 | 5305-01-582-2912 |
| Primary Part Number | 91266A540 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Fastener Length | 0.750 INCHES NOMINAL IN |
| Thread Length | 0.619 INCHES NOMINAL IN |
| Hardness Rating | 39.0 ROCKWELL C NOMINAL OVERALL |
| Material Document and Classification | ASTM F835 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Color | BLACK OVERALL |
| Surface Treatment | OXIDE OVERALL |
| Minimum Tensile Strength | 145000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | HEXAGON |
| 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 |
|---|---|
| 91266A540 PRIMARY | Mcmaster-Carr Supply Co (USA) |
NSN 5305-01-582-2912 is a Screw,cap,socket Head, manufactured by Mcmaster-Carr Supply Co, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-582-2912 has 1 manufacturer part number on file: 91266A540 (Mcmaster-Carr Supply Co).
Key specifications for 91266A540: Fastener Length: 0.750 INCHES NOMINAL IN; Thread Length: 0.619 INCHES NOMINAL IN; Hardness Rating: 39.0 ROCKWELL C NOMINAL OVERALL; Material Document and Classification: ASTM F835 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL. 12 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.