The Bolt,ring, cataloged under National Stock Number 5306-01-411-6375, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 18 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-01-411-6375 |
| Item Name | Bolt,ring |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Ring Stock Diameter | 0.417 INCHES MINIMUM AND 0.457 INCHES MAXIMUM IN |
| Eye Stock Diameter | 1.375 INCHES MINIMUM IN |
| Ring Inside Diameter | 2.300 INCHES MINIMUM AND 2.320 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416, TY2 CL3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325, TY2 CL3 FED SPEC 2ND TREATMENT RESPONSE OVERALL |
| Thread Length | 0.845 INCHES MINIMUM AND 0.905 INCHES MAXIMUM IN |
| Shank Length | 3.501 INCHES NOMINAL IN |
| Style Designator | SWIVEL |
| Nominal Thread Diameter | 0.5625 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 80205-NAS1251 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Shoulder Diameter | 0.743 INCHES MINIMUM AND 0.748 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OR ZINC AND CHROMATE OVERALL |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL OVERALL |
| Shoulder Length | 3.177 INCHES MINIMUM AND 3.197 INCHES MAXIMUM IN |
| 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 |
|---|---|
| NAS1251A10-51 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-411-6375 is a Bolt,ring, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-411-6375: Ring Stock Diameter: 0.417 INCHES MINIMUM AND 0.457 INCHES MAXIMUM IN; Eye Stock Diameter: 1.375 INCHES MINIMUM IN; Ring Inside Diameter: 2.300 INCHES MINIMUM AND 2.320 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416, TY2 CL3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325, TY2 CL3 FED SPEC 2ND TREATMENT RESPONSE OVERALL. 18 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.