The Bolt,shoulder, cataloged under National Stock Number 5306-00-256-6863, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-00-256-6863 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Fastener Length | 1.812 INCHES NOMINAL IN |
| Shoulder Length | 0.432 INCHES MINIMUM AND 0.442 INCHES MAXIMUM FIRST SHOULDER IN |
| Shoulder Length | 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM SECOND SHOULDER IN |
| Shoulder Diameter | 0.620 INCHES MINIMUM AND 0.625 INCHES MAXIMUM SECOND SHOULDER IN |
| Shoulder Diameter | 0.687 INCHES NOMINAL FIRST SHOULDER IN |
| Thread Length | 0.875 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND ALL SHOULDERS |
| Shank Unthreaded Hole Diameter | 0.136 INCHES NOMINAL FIRST HOLE IN |
| Material Document and Classification | SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP 1035 OVERALL |
| Thread Series Designator | UNF |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 1.625 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 |
|---|---|
| 3-12499-1 | 3/2 Design control — primary reference U.S. Government activity |
| C2000-667 | 5/9 Secondary reference U.S. Government activity |
NSN 5306-00-256-6863 is a Bolt,shoulder, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-00-256-6863: Fastener Length: 1.812 INCHES NOMINAL IN; Shoulder Length: 0.432 INCHES MINIMUM AND 0.442 INCHES MAXIMUM FIRST SHOULDER IN; Shoulder Length: 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM SECOND SHOULDER IN; Shoulder Diameter: 0.620 INCHES MINIMUM AND 0.625 INCHES MAXIMUM SECOND SHOULDER IN. 16 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.