| MATERIAL | STEEL COMP 4140 OR |
| STEEL COMP 8740 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | FED STD 66 FED STD ALL MATERIAL RESPONSES OVERALL |
| SURFACE TREATMENT | PHOSPHATE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-P-16232 TYPE M CLASS 3 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| HARDNESS RATING | 30.0 ROCKWELL C MINIMUM AND |
| 36.0 ROCKWELL C MAXIMUM OVERALL |
| TEETH QUANTITY | 375 |
| TEETH TYPE | SPUR |
| TOOTH FORM | STUB |
| PRESSURE ANGLE | 20.0000 DEGREES |
| PRECISION CLASSIFICATION | QUALITY NUMBER 11 |
| BACKLASH DESIGNATION | GRADE B |
| STYLE DESIGNATOR | FLANGED RING |
| PITCH DIAMETER | 23.4375 INCHES NOMINAL |
| NOMINAL OVERALL LENGTH | 0.625 INCHES |
| FLANGE NOMINAL DIAMETER | 25.444 INCHES |
| NOMINAL OUTSIDE DIAMETER | 23.728 INCHES |
| FLANGE NOMINAL THICKNESS | 0.548 INCHES |
| BODY STYLE | PLAIN, WITH LIGHTENING HOLES |
| ATTACHMENT METHOD | MOUNTING HOLE |
| MOUNTING HOLE TYPE AND QUANTITY | 24 COUNTERSUNK AND |
| 2 THREADED AXIALLY THROUGH BODY, FIRST END |
| MOUNTING HOLE NOMINAL DIAMETER | 0.253 INCHES AXIALLY THROUGH BODY, FIRST END |
| MOUNTING HOLE THREAD SERIES DESIGNATOR | UNF AXIALLY THROUGH BODY, FIRST END |
| MOUNTING HOLE NOMINAL THREAD SIZE | 0.190 INCHES AXIALLY THROUGH BODY, FIRST END |
| BOLT HOLE CIRCLE NOMINAL DIAMETER | 24.375 INCHES AXIALLY THROUGH BODY, FIRST END |
| SPECIAL FEATURES | 63 MICROINCH AA FINISH ON GEAR TEETH WORKING SURFACES,FURNISHED W/2 STRIKES,2 THD INSERTS,2 SCREWS,4 PINS ATTACHED |
| THE MANUFACTURERS DATA | |
| MANUFACTURERS CODE | 20418 |
| DESIGN CONTROL REFERENCE | 717116-301 |