The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-558-9893, 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 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-558-9893 |
| Primary Part Number | 91280A712 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Special Test Features | ROCKWELL HARDNESS = C22-C32, FULLY THREADED |
| Thread Length | 20.000 MILLIMETERS NOMINAL MM |
| Supplementary Features | METRIC THREAD PITCH = 1.75MM MM |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | D8286-933 MANUFACTURERS SPECIFICATION |
| Width Between Flats | 19.000 MILLIMETERS NOMINAL MM |
| Surface Treatment | ZINC OVERALL |
| Minimum Tensile Strength | 116000 POUNDS PER SQUARE INCH LBS |
| Thread Class | CLASS 6H |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| 91280A712 PRIMARY | Mcmaster-Carr Supply Co (USA) |
NSN 5305-01-558-9893 is a Screw,cap,hexagon Head, manufactured by Mcmaster-Carr Supply Co, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-558-9893 has 1 manufacturer part number on file: 91280A712 (Mcmaster-Carr Supply Co).
Key specifications for 91280A712: Special Test Features: ROCKWELL HARDNESS = C22-C32, FULLY THREADED; Thread Length: 20.000 MILLIMETERS NOMINAL MM; Supplementary Features: METRIC THREAD PITCH = 1.75MM MM; Head Style: HEXAGON. 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.