The Bolt,ring, cataloged under National Stock Number 5306-01-437-2653, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-01-437-2653 |
| Item Name | Bolt,ring |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Ring Stock Diameter | 2.253 INCHES MINIMUM AND 2.273 INCHES MAXIMUM IN |
| Eye Stock Diameter | 2.620 INCHES MINIMUM AND 2.640 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416, TY2CL3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-P-325, TY2,CL3 FED SPEC 2ND TREATMENT RESPONSE OVERALL |
| Thread Length | 1.095 INCHES MINIMUM AND 1.155 INCHES MAXIMUM IN |
| Shank Unthreaded Hole Diameter | 0.141 INCHES MINIMUM AND 0.151 INCHES MAXIMUM FIRST HOLE IN |
| Shank Length | 1.095 INCHES MINIMUM AND 1.155 INCHES MAXIMUM IN |
| Style Designator | SWIVEL |
| 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 |
| Distance From Threaded End to Shank Hole Center | 0.241 INCHES MINIMUM AND 0.251 INCHES MAXIMUM FIRST HOLE 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 OR STEEL COMP 4140 OR STEEL COMP 8735 OR STEEL COMP 8740 OVERALL |
| Shoulder Length | 2.090 INCHES MINIMUM AND 3.010 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 |
|---|---|
| NAS1251A25D48 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-437-2653 is a Bolt,ring, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-437-2653: Ring Stock Diameter: 2.253 INCHES MINIMUM AND 2.273 INCHES MAXIMUM IN; Eye Stock Diameter: 2.620 INCHES MINIMUM AND 2.640 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416, TY2CL3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-P-325, TY2,CL3 FED SPEC 2ND TREATMENT RESPONSE OVERALL; Thread Length: 1.095 INCHES MINIMUM AND 1.155 INCHES MAXIMUM IN. 19 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.