| ASA STANDARD CHAIN NUMBER | 50-3 |
| BORE DIAMETER | 1.1498 INCHES MINIMUM AND 1.250 INCHES MAXIMUM |
| BORE LENGTH | 2.375 INCHES NOMINAL |
| BORE TYPE | STRAIGHT |
| CENTER TO CENTER DISTANCE BETWEEN TEETH ROWS | 0.707 INCHES NOMINAL |
| DESIGN FORM | PLAIN |
| DISTANCE FROM CENTER OF BORE TO BOTTOM OF KEYWAY | 0.737 INCHES NOMINAL |
| DISTANCE FROM HUB END TO FLANGE END | 0.3145 INCHES NOMINAL BOTH ENDS |
| FACE WIDTH | 1.740 INCHES MINIMUM AND 1.752 INCHES MAXIMUM |
| FURNISHED ITEMS | KEYING FACILITY |
| HARDNESS RATING TEST METHOD | ROCKWELL |
| HUB OUTSIDE DIAMETER | 2.500 INCHES NOMINAL BOTH ENDS |
| KEYING FACILITY TYPE | KEYWAY |
| KEYWAY WIDTH | 0.250 INCHES NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | SAE 1040 ASSN STD 1ST MATERIAL RESPONSE AND SAE 1045 ASSN STD 2ND MATERIAL RESPONSE |
| MATERIAL | STEEL COMP 1040 OR STEEL COMP 1045 |
| METALLIC HARDNESS RATING AND LOCATION | 50.0 ROCKWELL C MINIMUM HUB AND 55.0 ROCKWELL C MAXIMUM HUB |
| OUTSIDE DIAMETER | 3.720 INCHES NOMINAL |
| OVERALL LENGTH | 2.375 INCHES NOMINAL |
| PITCH DIAMETER | 3.401 INCHES NOMINAL |
| PROTRUDING HUB CHARACTERISTIC | PLAIN |
| QUANTITY | 1 |
| STYLE DESIGNATOR | PLAIN |
| TEETH HARDNESS RATING | 50.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM |
| TEETH QUANTITY PER ROW | 17 |
| TEETH ROW QUANTITY | 3 |
| TOOTH PITCH | 0.625 INCHES NOMINAL |