| ASA STANDARD CHAIN NUMBER | 50-4 |
| BORE DIAMETER | 1.6245 INCHES MINIMUM AND 1.6255 INCHES MAXIMUM |
| BORE LENGTH | 3.159 INCHES MINIMUM AND 3.163 INCHES MAXIMUM |
| BORE TYPE | STRAIGHT |
| CENTER TO CENTER DISTANCE BETWEEN TEETH ROWS | 0.707 INCHES NOMINAL |
| DESIGN FORM | WEBBED |
| DISTANCE FROM CENTER OF BORE TO BOTTOM OF KEYWAY | 1.000 INCHES NOMINAL |
| DISTANCE FROM HUB END TO FLANGE END | 0.717 INCHES NOMINAL AA END |
| FURNISHED ITEMS | KEYING FACILITY |
| FACE WIDTH | 2.443 INCHES MINIMUM AND 2.445 INCHES MAXIMUM |
| HARDNESS RATING TEST METHOD | NOT RATED |
| HUB OUTSIDE DIAMETER | 2.500 INCHES NOMINAL AA END |
| HUB OUTSIDE DIAMETER | 2.625 INCHES NOMINAL BB END |
| KEYING FACILITY TYPE | KEYWAY |
| KEYWAY WIDTH | 0.375 INCHES NOMINAL |
| OUTSIDE DIAMETER | 6.718 INCHES MINIMUM AND 6.721 INCHES MAXIMUM |
| OVERALL LENGTH | 3.159 INCHES MINIMUM AND 3.163 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-890, ALLOY NO. 3 MIL SPEC SINGLE MATERIAL RESPONSE |
| MATERIAL | STEEL |
| PITCH DIAMETER | 6.376 INCHES NOMINAL |
| QUANTITY | 1 |
| STYLE DESIGNATOR | WEBBED OR SPOKED |
| TEETH ROW QUANTITY | 4 |
| TEETH QUANTITY PER ROW | 32 |
| TOOTH PITCH | 0.625 INCHES NOMINAL |