The Bolt,shoulder, cataloged under National Stock Number 5306-00-682-5129, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 24 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-682-5129 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.400 INCHES NOMINAL IN |
| Fastener Length | 2.662 INCHES NOMINAL IN |
| Shoulder Length | 0.450 INCHES MINIMUM FOURTH SHOULDER IN |
| Shoulder Length | 0.460 INCHES MINIMUM THIRD SHOULDER IN |
| Shoulder Length | 0.533 INCHES NOMINAL FIRST SHOULDER IN |
| Shoulder Length | 1.219 INCHES MINIMUM SECOND SHOULDER IN |
| Shoulder Diameter | 0.7485 INCHES MINIMUM AND 0.7494 INCHES MAXIMUM FOURTH SHOULDER IN |
| Shoulder Diameter | 0.7485 INCHES MINIMUM AND 0.7494 INCHES MAXIMUM THIRD SHOULDER IN |
| Shoulder Diameter | 0.8414 INCHES MINIMUM AND 0.8424 INCHES MAXIMUM SECOND SHOULDER IN |
| Shoulder Diameter | 0.9357 INCHES MINIMUM AND 0.9367 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.413 INCHES MINIMUM AND 0.580 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND ALL SHOULDERS |
| Shank Unthreaded Hole Diameter | 0.141 INCHES MINIMUM AND 0.151 INCHES MAXIMUM FIRST HOLE IN |
| Material Document and Classification | MIL-S5626 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 1.239 INCHES MINIMUM AND 1.252 INCHES MAXIMUM IN |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL COMP 4140 OVERALL |
| Thread Series Designator | UNF |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 2.538 INCHES NOMINAL 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 |
|---|---|
| 3W24959-101 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-00-682-5129 is a Bolt,shoulder, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-00-682-5129: Head Height: 0.400 INCHES NOMINAL IN; Fastener Length: 2.662 INCHES NOMINAL IN; Shoulder Length: 0.450 INCHES MINIMUM FOURTH SHOULDER IN; Shoulder Length: 0.460 INCHES MINIMUM THIRD SHOULDER IN. 24 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.