| ASA STANDARD CHAIN NUMBER | 50 |
| BORE DIAMETER | 1.249 INCHES MINIMUM AND 1.251 INCHES MAXIMUM |
| BORE LENGTH | 1.016 INCHES NOMINAL |
| BORE TYPE | STRAIGHT |
| DESIGN FORM | WEBBED |
| DISTANCE FROM CENTER OF BORE TO BOTTOM OF KEYWAY | 0.795 INCHES MINIMUM AND 0.805 INCHES MAXIMUM |
| DISTANCE FROM HUB END TO FLANGE END | 0.156 INCHES NOMINAL BB END |
| DISTANCE FROM HUB END TO FLANGE END | 0.422 INCHES NOMINAL AA END |
| FURNISHED ITEMS | KEYING FACILITY AND LIGHTENING HOLE |
| FACE WIDTH | 0.750 INCHES NOMINAL |
| HARDNESS RATING TEST METHOD | NOT RATED |
| HOLE LOCATION | LOCATED ON TOP OF KEYWAY |
| HUB OUTSIDE DIAMETER | 2.750 INCHES NOMINAL AA END |
| KEYING FACILITY TYPE | KEYWAY |
| KEYWAY WIDTH | 0.313 INCHES MINIMUM AND 0.319 INCHES MAXIMUM |
| OUTSIDE DIAMETER | 8.310 INCHES MINIMUM AND 8.320 INCHES MAXIMUM |
| OVERALL LENGTH | 1.172 INCHES NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-681, COMP 65-35, COND A FED SPEC SINGLE MATERIAL RESPONSE |
| MATERIAL | STEEL UNS J03001 |
| PITCH DIAMETER | 7.966 INCHES NOMINAL |
| PROTRUDING HUB CHARACTERISTIC | PLAIN |
| QUANTITY | 1 |
| SECURING HOLE QUANTITY | 1 |
| SECURING LOCATION | AA END |
| SECURING METHOD | THREADED HOLE |
| STYLE DESIGNATOR | WEBBED OR SPOKED |
| TEETH ROW QUANTITY | 1 |
| TEETH QUANTITY PER ROW | 40 |
| THREAD SIZE | 5/16 IN.-18 |
| TOOTH PITCH | 0.625 INCHES NOMINAL |