| COLLAR INSIDE DIAMETER | 0.312 INCHES NOMINAL |
| COLLAR OUTSIDE DIAMETER | 0.600 INCHES MINIMUM AND 0.620 INCHES MAXIMUM |
| COLLAR OVERALL HEIGHT | 0.660 INCHES NOMINAL |
| COLLAR STYLE | THREADED (BREAK OFF) TYPE |
| LUBRICATION | SOLID FILM |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | COLLAR,PIN-RIVET |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5734 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5736 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | IRON ALLOY 660 OVERALL |
| NOMINAL THREAD SIZE | 0.312 INCHES |
| SPECIAL FEATURES | HEX WIDTH 0.555 MIN 0.565 MAX; WASHER 90,000 PSI SHEAR MIN |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | C24 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |