| BORE DIAMETER | 17.500 INCHES NOMINAL |
| BORE LENGTH | 0.53175 INCHES MINIMUM AND 0.59425 INCHES MAXIMUM |
| BORE TYPE | STRAIGHT |
| COUNTERBORE DIAMETER | 20.000 INCHES MINIMUM AND 20.005 INCHES MAXIMUM |
| COUNTERBORE LOCATION | AA END |
| COUNTERBORE DEPTH | 0.46875 INCHES MINIMUM AND 0.53125 INCHES MAXIMUM |
| DESIGN FORM | PLAIN |
| FURNISHED ITEMS | COUNTERBORE |
| FACE WIDTH | 0.9995 INCHES MINIMUM AND 1.1245 INCHES MAXIMUM |
| HARDNESS RATING TEST METHOD | NOT RATED |
| HOLE LOCATION | ON A 18.624 IN B0LT CIRCLE |
| OUTSIDE DIAMETER | 26.1875 INCHES MINIMUM AND 26.3125 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-13048,FS 1046 MIL SPEC 1ST MATERIAL RESPONSE OR FS 1050 MIL SPEC 2ND MATERIAL RESPONSE |
| MATERIAL | STEEL COMP 1046 OR STEEL COMP 1050 |
| METALLIC HARDNESS RATING AND LOCATION | 60.0 ROCKWELL C MAXIMUM BODY |
| PITCH DIAMETER | 23.442 INCHES NOMINAL |
| SECURING HOLE QUANTITY | 12 |
| SECURING METHOD | THREADED HOLE |
| STYLE DESIGNATOR | WEBBED OR SPOKED |
| TEETH ROW QUANTITY | 1 |
| TEETH HARDNESS RATING | 50.0 ROCKWELL C MINIMUM AND 60.0 ROCKWELL C MAXIMUM |
| TEETH QUANTITY PER ROW | 12 |
| THREAD SIZE | 1/2 IN. - 20 |
| TOOTH PITCH | 6.132 INCHES NOMINAL |