The Bolt,shoulder, cataloged under National Stock Number 5306-00-426-0619, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 21 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-00-426-0619 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.500 INCHES NOMINAL IN |
| Fastener Length | 3.531 INCHES NOMINAL IN |
| Shoulder Length | 2.500 INCHES NOMINAL FIRST SHOULDER IN |
| Shoulder Length | 0.219 INCHES NOMINAL SECOND SHOULDER IN |
| Shoulder Diameter | 1.250 INCHES NOMINAL FIRST SHOULDER IN |
| Shoulder Diameter | 0.625 INCHES NOMINAL SECOND SHOULDER IN |
| Thread Length | 0.812 INCHES MINIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Hardness Rating | 79.8 ROCKWELL B NOMINAL OVERALL |
| Shank Unthreaded Hole Diameter | 0.188 INCHES NOMINAL FIRST HOLE IN |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 1.000 INCHES IN |
| Head Style | PAN NO. 2 |
| Thread Direction | RIGHT-HAND |
| Minimum Yield Strength | 43000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 8 |
| Material | STEEL COMP 1020 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 3.281 INCHES NOMINAL FIRST HOLE IN |
| Head Diameter | 1.688 INCHES NOMINAL 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 |
|---|---|
| RAB3 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-00-426-0619 is a Bolt,shoulder, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-00-426-0619: Head Height: 0.500 INCHES NOMINAL IN; Fastener Length: 3.531 INCHES NOMINAL IN; Shoulder Length: 2.500 INCHES NOMINAL FIRST SHOULDER IN; Shoulder Length: 0.219 INCHES NOMINAL SECOND SHOULDER IN. 21 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.