| EYE STOCK DIAMETER | 0.562 INCHES MINIMUM |
| HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 3RD MATERIAL RESPONSE OR MIL-S-6098 MIL SPEC 4TH MATERIAL RESPONSE OR MIL-S-8503 MIL SPEC 5TH MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8735 OR STEEL COMP 6150 OVERALL |
| MINIMUM TENSILE STRENGTH | 160000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 0.312 INCHES |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
| RING STOCK DIAMETER | 0.230 INCHES MINIMUM AND 0.270 INCHES MAXIMUM |
| RING INSIDE DIAMETER | 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM |
| SHANK UNTHREADED HOLE DIAMETER | 0.066 INCHES MINIMUM AND 0.086 INCHES MAXIMUM FIRST HOLE |
| SHANK LENGTH | 0.602 INCHES MINIMUM AND 0.662 INCHES MAXIMUM |
| SHOULDER DIAMETER | 0.368 INCHES MINIMUM AND 0.373 INCHES MAXIMUM |
| SHOULDER LENGTH | 1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM |
| SPECIAL FEATURES | MOVEABLE RING |
| SPECIFICATION/STANDARD DATA | 80205-NAS1251 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| STYLE DESIGNATOR | SWIVEL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TY 2 CL 3 FED SPEC 1ST TREATMENT RESPONSE OR ASTM B633 ASSN STD 2ND TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM AND CHROMATE OR ZINC OVERALL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.602 INCHES MINIMUM AND 0.662 INCHES MAXIMUM |
| THREAD QUANTITY PER INCH | 24 |
| THREAD SERIES DESIGNATOR | UNJF |