| ASA STANDARD CHAIN NUMBER | 40-2 |
| BORE DIAMETER | 1.9355 INCHES MINIMUM AND 1.9375 INCHES MAXIMUM |
| BORE LENGTH | 2.500 INCHES NOMINAL |
| BORE TYPE | STRAIGHT |
| CENTER TO CENTER DISTANCE BETWEEN TEETH ROWS | 0.282 INCHES NOMINAL |
| DESIGN FORM | WEBBED |
| DISTANCE FROM CENTER OF BORE TO BOTTOM OF KEYWAY | 1.2177 INCHES NOMINAL |
| DISTANCE FROM HUB END TO FLANGE END | 1.661 INCHES NOMINAL AA END |
| FACE WIDTH | 0.839 INCHES NOMINAL |
| FURNISHED ITEMS | KEYING FACILITY AND LIGHTENING HOLE |
| HARDNESS RATING TEST METHOD | NOT RATED |
| HOLE LOCATION | ON TOP OF KEY |
| HUB OUTSIDE DIAMETER | 3.500 INCHES NOMINAL AA END |
| KEYING FACILITY TYPE | KEYWAY |
| KEYWAY WIDTH | 0.250 INCHES NOMINAL |
| MATERIAL | STEEL |
| PITCH DIAMETER | 19.419 INCHES NOMINAL |
| OUTSIDE DIAMETER | 19.713 INCHES NOMINAL |
| OVERALL LENGTH | 2.500 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 QUANTITY PER ROW | 122 |
| TEETH ROW QUANTITY | 2 |
| THREAD SIZE | 1/4 IN.-20 |
| TOOTH PITCH | 0.500 INCHES NOMINAL |