| COLLAR INSIDE DIAMETER | 0.490 INCHES NOMINAL |
| COLLAR OUTSIDE DIAMETER | 0.675 INCHES MINIMUM AND 0.685 INCHES MAXIMUM |
| COLLAR OVERALL HEIGHT | 0.730 INCHES NOMINAL |
| COLLAR STYLE | THREADED (BREAK OFF) TYPE |
| HEAT TREATMENT | ANNEALED OVERALL |
| LUBRICATION | SOLID FILM |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | IRON ALLOY 660 OVERALL |
| NOMINAL THREAD SIZE | 0.375 INCHES |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SELF-ALIGING COLLAR ASSEMBLY |
| SPECIAL FEATURES | HEX WIDTH 0.613 MIN 0.628 MAX; SOLID FILM LUBRICANT PER AS5272, TYPE II; HEAT TREAT 90,000 PSI MIN; FOR USE ON SLOPED SURFACES UP TO 7 DEGREE MAX ON STANDARD AND 1/64 OVERSIZE HI-LOK TENSION HEAD PINS |
| THREAD CLASS | M3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | C24 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |