| ASA STANDARD CHAIN NUMBER | 80 |
| BORE DIAMETER | 1.688 INCHES MINIMUM AND 1.690 INCHES MAXIMUM |
| BORE LENGTH | 2.000 INCHES NOMINAL |
| BORE TYPE | STRAIGHT |
| DESIGN FORM | PLAIN |
| DISTANCE FROM CENTER OF BORE TO BOTTOM OF KEYWAY | 1.032 INCHES MINIMUM AND 1.033 INCHES MAXIMUM |
| DISTANCE FROM HUB END TO FLANGE END | |
| FACE WIDTH | 0.563 INCHES NOMINAL |
| FURNISHED ITEMS AND QUANTITY | 2 SETSCREWS |
| FURNISHED ITEMS | KEYING FACILITY |
| HARDNESS RATING TEST METHOD | ROCKWELL |
| HOLE LOCATION | 1 HOLE LOCATED ON TOP OF KEYWAY 1 HOLE LOCATED 90 DEG CW FROM KEYWAY |
| KEYING FACILITY TYPE | KEYWAY |
| KEYWAY WIDTH | 0.623 INCHES NOMINAL |
| MATERIAL | STEEL |
| METALLIC HARDNESS RATING AND LOCATION | 57.000 ROCKWELL C MINIMUM BODY AND 60.000 ROCKWELL C MAXIMUM BODY |
| PITCH DIAMETER | 4.179 INCHES NOMINAL |
| PROTRUDING HUB CHARACTERISTIC | PLAIN |
| QUANTITY | 1 |
| OUTSIDE DIAMETER | 4.657 INCHES NOMINAL |
| OVERALL LENGTH | 2.000 INCHES NOMINAL |
| SECURING HOLE QUANTITY | 2 |
| SECURING LOCATION | AA END OR BB END |
| SECURING METHOD | THREADED HOLE(S) |
| STYLE DESIGNATOR | PLAIN |
| TEETH HARDNESS RATING | 7.000 ROCKWELL C MINIMUM AND 60.000 ROCKWELL C MAXIMUM |
| TEETH QUANTITY PER ROW | 13 |
| TEETH ROW QUANTITY | 1 |
| THREAD SIZE | 1/2-13 |
| TOOTH PITCH | 1.000 INCHES NOMINAL |