The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-533-5235, 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 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5305-01-533-5235 |
| Primary Part Number | 91280A538 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | CANCELLED |
| Head Height | 5.3 MILLIMETERS NOMINAL MM |
| Fastener Length | 30.0 MILLIMETERS NOMINAL MM |
| Thread Length | 16.0 MILLIMETERS NOMINAL MM |
| Hardness Rating | 22.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Thread Diameter | 8.0 MILLIMETERS MM |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 13.0 MILLIMETERS NOMINAL MM |
| Surface Treatment | ZINC OVERALL |
| Minimum Tensile Strength | 1160000 POUNDS PER SQUARE INCH LBS |
| Material | STEEL OVERALL |
| Thread Series Designator | ISO M |
| Acquisition Status | CANCELLED |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5305-01-533-5235 is a Screw,cap,hexagon Head, manufactured by Mcmaster-Carr Supply Co, classified under FSC 5305, Screws. Status: cancelled.
NSN 5305-01-533-5235 has 2 manufacturer part numbers on file: 91280A538 (Mcmaster-Carr Supply Co), 38617 (Fastenal Company Div Fastenal-Hyma).
1 possible match (shared part number, not a government interchangeability claim): 5935-01-668-5011. Verify interchangeability with system specifications before substitution.
Key specifications for 91280A538: Head Height: 5.3 MILLIMETERS NOMINAL MM; Fastener Length: 30.0 MILLIMETERS NOMINAL MM; Thread Length: 16.0 MILLIMETERS NOMINAL MM; Hardness Rating: 22.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM 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.
NSN 5305-01-533-5235 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.
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.