| ARC NOMINAL LENGTH | 8.650 INCHES |
| ATTACHMENT METHOD | MOUNTING HOLE |
| BODY RECESS NOMINAL DEPTH | 0.505 INCHES FIRST END |
| BOLT HOLE CIRCLE NOMINAL DIAMETER | 3.912 INCHES AND 4.125 INCHES AXIALLY THROUGH BODY, FIRST END |
| FACE NOMINAL WIDTH | 0.760 INCHES |
| HARDNESS RATING | 30.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-626,COMP 8620 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-S-624,COND NORMALIZED FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL OVERALL |
| MOUNTING HOLE NOMINAL DIAMETER | 0.285 INCHES AND 0.030 INCHES AXIALLY THROUGH BODY, FIRST END |
| MOUNTING HOLE TYPE AND QUANTITY | 3 PLAIN AND 2 PLAIN AXIALLY THROUGH BODY, FIRST END |
| NOMINAL OUTSIDE RADIUS | 5.514 INCHES |
| PITCH RADIUS | 5.4500 INCHES NOMINAL |
| PRECISION CLASSIFICATION | QUALITY NUMBER 10 |
| PRESSURE ANGLE | 20.0000 DEGREES |
| SPECIAL FEATURES | BOTTOM FLANGE 0.255 IN THICK FOR MTG HOLES |
| STYLE DESIGNATOR | HUBLESS, RECESSED BODY |
| TEETH QUANTITY | 27 |
| TOOTH FORM | STANDARD |