The Bolt,shoulder, cataloged under National Stock Number 5306-01-671-7651, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 22 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-01-671-7651 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.375 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN |
| Fastener Length | 1.781 INCHES MINIMUM AND 1.821 INCHES MAXIMUM IN |
| Shoulder Length | 0.500 INCHES MINIMUM AND 0.700 INCHES MAXIMUM SECOND SHOULDER IN |
| Shoulder Length | 0.760 INCHES MINIMUM AND 0.770 INCHES MAXIMUM GRIP IN |
| Shoulder Diameter | 0.6500 INCHES MINIMUM AND 0.6580 INCHES MAXIMUM SECOND SHOULDER IN |
| Shoulder Diameter | 0.8740 INCHES MINIMUM AND 0.8745 INCHES MAXIMUM GRIP IN |
| Thread Length | 1.041 INCHES MINIMUM AND 1.056 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND SECOND SHOULDER |
| Shoulder Shape | ROUND GRIP |
| Material Document and Classification | AMS5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.7500 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 1.052 INCHES MINIMUM AND 1.065 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Chamfer Angle | 15.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 16 |
| Material | IRON ALLOY 660 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 1.191 INCHES MINIMUM 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 |
|---|---|
| NAS1160-12-12 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-671-7651 is a Bolt,shoulder, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-671-7651: Head Height: 0.375 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN; Fastener Length: 1.781 INCHES MINIMUM AND 1.821 INCHES MAXIMUM IN; Shoulder Length: 0.500 INCHES MINIMUM AND 0.700 INCHES MAXIMUM SECOND SHOULDER IN; Shoulder Length: 0.760 INCHES MINIMUM AND 0.770 INCHES MAXIMUM GRIP IN. 22 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.