The Bolt,ring, cataloged under National Stock Number 5306-01-437-3247, 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18 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-01-437-3247 |
| Item Name | Bolt,ring |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Ring Stock Diameter | 0.667 INCHES MINIMUM AND 0.707 INCHES MAXIMUM IN |
| Eye Stock Diameter | 0.667 INCHES MINIMUM AND 0.707 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416 TY2CL3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-P-325 TY2CL3 FED SPEC 2ND TREATMENT RESPONSE OVERALL |
| Thread Length | 0.995 INCHES MINIMUM AND 1.155 INCHES MAXIMUM IN |
| Shank Length | 0.955 INCHES MINIMUM AND 1.155 INCHES MAXIMUM IN |
| Style Designator | SWIVEL |
| Material Document and Classification | MIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-8503 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-6098 MIL SPEC 3RD MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 4TH MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.750 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 80205-NAS1251 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Shoulder Diameter | 0.993 INCHES MINIMUM AND 0.998 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OR ZINC OVERALL |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 16 |
| Material | STEEL COMP 4340 AND STEEL COMP 8740 OVERALL |
| Shoulder Length | 2.375 INCHES NOMINAL 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 |
|---|---|
| NAS1251A25-38 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-437-3247 is a Bolt,ring, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-437-3247: Ring Stock Diameter: 0.667 INCHES MINIMUM AND 0.707 INCHES MAXIMUM IN; Eye Stock Diameter: 0.667 INCHES MINIMUM AND 0.707 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416 TY2CL3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-P-325 TY2CL3 FED SPEC 2ND TREATMENT RESPONSE OVERALL; Thread Length: 0.995 INCHES MINIMUM AND 1.155 INCHES MAXIMUM IN. 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.