The Bolt,machine, cataloged under National Stock Number 5306-00-028-4059, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-028-4059 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.250 INCHES NOMINAL IN |
| Fastener Length | 1.266 INCHES MINIMUM AND 1.281 INCHES MAXIMUM IN |
| Thread Length | 0.406 INCHES MINIMUM IN |
| Shank Unthreaded Hole Diameter | 0.106 INCHES NOMINAL FIRST HOLE IN |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.860 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN |
| Width Between Flats | 0.750 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Minimum Tensile Strength | 125000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 1.110 INCHES MINIMUM AND 1.125 INCHES MAXIMUM FIRST HOLE IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 111904-8-109 | 5/9 Secondary reference The Boeing Company |
| 111904-8-109 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-00-028-4059 is a Bolt,machine, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-00-028-4059: Head Height: 0.250 INCHES NOMINAL IN; Fastener Length: 1.266 INCHES MINIMUM AND 1.281 INCHES MAXIMUM IN; Thread Length: 0.406 INCHES MINIMUM IN; Shank Unthreaded Hole Diameter: 0.106 INCHES NOMINAL FIRST HOLE IN. 17 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.