The Bolt,shoulder, cataloged under National Stock Number 5306-01-588-1765, 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17 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-588-1765 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.219 INCHES MINIMUM AND 0.234 INCHES MAXIMUM IN |
| Fastener Length | 1.379 INCHES NOMINAL IN |
| Shoulder Length | 0.760 INCHES NOMINAL FIRST SHOULDER IN |
| Shoulder Diameter | 0.499 INCHES MINIMUM AND 0.500 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.529 INCHES MINIMUM AND 0.554 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Shank Unthreaded Hole Diameter | 0.106 INCHES NOMINAL THREADS IN |
| Nominal Thread Diameter | 0.438 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.678 INCHES MINIMUM AND 0.690 INCHES MAXIMUM IN |
| Minimum Tensile Strength | 15900 POUNDS PER SQUARE INCH LBS |
| Chamfer Angle | 15.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| 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 |
|---|---|
| NAS1160-7-12D | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-588-1765 is a Bolt,shoulder, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-588-1765: Head Height: 0.219 INCHES MINIMUM AND 0.234 INCHES MAXIMUM IN; Fastener Length: 1.379 INCHES NOMINAL IN; Shoulder Length: 0.760 INCHES NOMINAL FIRST SHOULDER IN; Shoulder Diameter: 0.499 INCHES MINIMUM AND 0.500 INCHES MAXIMUM FIRST SHOULDER 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.