The Bolt,shoulder, cataloged under National Stock Number 5306-01-388-6942, 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17 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-388-6942 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.328 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN |
| Fastener Length | 3.457 INCHES MINIMUM AND 3.497 INCHES MAXIMUM IN |
| Shoulder Length | 2.687 INCHES NOMINAL FIRST SHOULDER IN |
| Surface Treatment Document and Classification | QQ-P-416 TY2 CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Diameter | 0.620 INCHES MINIMUM AND 0.624 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.770 INCHES NOMINAL IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 80205-NAS1297 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Width Between Flats | 0.928 INCHES MINIMUM AND 0.940 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP 4140 AND STEEL COMP 8740 AND STEEL COMP 8650 AND STEEL COMP 8735 AND STEEL COMP 4130 AND STEEL COMP 4037 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 |
|---|---|
| MIL-B-6812 | 5/1 Secondary reference U.S. Government activity |
| MIL-B-6812 | 5/9 Secondary reference U.S. Government activity |
| NAS1297-8-43 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-388-6942 is a Bolt,shoulder, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-388-6942: Head Height: 0.328 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN; Fastener Length: 3.457 INCHES MINIMUM AND 3.497 INCHES MAXIMUM IN; Shoulder Length: 2.687 INCHES NOMINAL FIRST SHOULDER IN; Surface Treatment Document and Classification: QQ-P-416 TY2 CL2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 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.