| MATERIAL | STEEL COMP 303 AND | 
|  | ALUMINUM ALLOY 2024 HUB | 
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763,CL 303 FED SPEC 1ST MATERIAL RESPONSE AND | 
|  | QQ-A-250/4 FED SPEC 2ND MATERIAL RESPONSE HUB | 
| SURFACE TREATMENT | PASSIVATE HUB | 
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | 171,FINISH NO. 5.4.1 MIL STD SINGLE TREATMENT RESPONSE HUB | 
| TEETH QUANTITY | 130 | 
| TOOTH FORM | STUB | 
| PRESSURE ANGLE | 20.0000 DEGREES | 
| PRECISION CLASSIFICATION | QUALITY NUMBER 12 | 
| STYLE DESIGNATOR | PROTRUDING HUB | 
| PITCH DIAMETER | 2.0630 INCHES NOMINAL | 
| NOMINAL OVERALL LENGTH | 0.385 INCHES | 
| NOMINAL OUTSIDE DIAMETER | 2.0312 INCHES | 
| FACE NOMINAL WIDTH | 0.104 INCHES | 
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.160 INCHES FIRST END | 
| BORE STYLE | PLAIN BOTH ENDS | 
| BORE NOMINAL DIAMETER | 0.120 INCHES BOTH ENDS | 
| HUB STYLE DESIGNATOR | SPLIT FIRST END | 
| HUB NOMINAL DIAMETER | 0.188 INCHES FIRST END | 
| CLAMPING SURFACE NOMINAL LENGTH | 0.188 INCHES FIRST END | 
| ATTACHMENT METHOD | MOUNTING HOLE | 
| MOUNTING HOLE TYPE AND QUANTITY | 2 PLAIN TRANSVERSELY THROUGH FACE | 
| MOUNTING HOLE NOMINAL DIAMETER | 0.032 INCHES TRANSVERSELY THROUGH FACE | 
| THE MANUFACTURERS DATA |  | 
| MANUFACTURERS CODE | 97942 | 
| DESIGN CONTROL REFERENCE | 577R646H14 |