| MATERIAL | ALUMINUM ALLOY 6061 AND |
| COPPER ALLOY 642 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-250/11 FED SPEC 1ST MATERIAL RESPONSE OR |
| QQ-B-679 FED SPEC 2ND MATERIAL RESPONSE OVERALL |
| TEETH QUANTITY | 87 |
| TOOTH FORM | STANDARD |
| PRESSURE ANGLE | 20.0000 DEGREES |
| PRECISION CLASSIFICATION | QUALITY NUMBER 11 |
| BACKLASH DESIGNATION | GRADE B |
| STYLE DESIGNATOR | PROTRUDING HUBS |
| PITCH DIAMETER | 3.6250 INCHES NOMINAL |
| NOMINAL OUTSIDE DIAMETER | 3.707 INCHES |
| FACE NOMINAL WIDTH | 0.250 INCHES |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 1.181 INCHES FIRST END |
| 0.654 INCHES SECOND END |
| BORE STYLE | W/COUNTERBORE COUNTER BORE, SECOND END |
| BORE NOMINAL DIAMETER | 2.000 INCHES COUNTER BORE, SECOND END |
| COUNTERBORE NOMINAL DEPTH | 0.5250 INCHES COUNTER BORE, SECOND END |
| COUNTERBORE NOMINAL DIAMETER | 2.1200 INCHES COUNTER BORE, SECOND END |
| HUB STYLE DESIGNATOR | 3 STEPS FIRST END |
| 1 STEP SECOND END |
| END NOMINAL LENGTH | 0.380 INCHES FIRST END |
| 0.281 INCHES SECOND END |
| END NOMINAL DIAMETER | 2.526 INCHES FIRST END |
| 2.312 INCHES SECOND END |
| FIRST STEP NOMINAL LENGTH | 0.493 INCHES FIRST END |
| 0.373 INCHES SECOND END |
| FIRST STEP NOMINAL DIAMETER | 2.562 INCHES FIRST END |
| 2.410 INCHES SECOND END |
| SECOND STEP NOMINAL LENGTH | 0.163 INCHES FIRST END |
| SECOND STEP NOMINAL DIAMETER | 2.670 INCHES FIRST END |
| THIRD STEP NOMINAL LENGTH | 0.141 INCHES FIRST END |
| THIRD STEP NOMINAL DIAMETER | 3.190 INCHES FIRST END |
| BODY STYLE | WEBBED, OFFSET, SOLID |
| SPECIAL FEATURES | LOC 0.530 IN. FROM 1ST END BORE INCREASE TO 2.380 IN. DIA BY 0.850 IN. LG |