| ATTACHMENT METHOD | MOUNTING HOLE |
| BODY STYLE | PLAIN, SOLID |
| BORE NOMINAL DIAMETER | 0.251 INCHES BOTH ENDS |
| BORE STYLE | W/COUNTERBORE BOTH ENDS |
| COUNTERBORE NOMINAL DEPTH | 0.240 INCHES COUNTER BORE, SECOND END |
| COUNTERBORE NOMINAL DEPTH | 0.520 INCHES COUNTERBORE, FIRST END |
| COUNTERBORE NOMINAL DIAMETER | 0.418 INCHES COUNTERBORE, FIRST END |
| COUNTERBORE NOMINAL DIAMETER | 0.500 INCHES COUNTER BORE, SECOND END |
| FACE NOMINAL WIDTH | 0.248 INCHES |
| HARDNESS RATING | 34.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM BODY |
| HARDNESS RATING | 34.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM HUB |
| HARDNESS RATING | 55.0 ROCKWELL C MINIMUM AND 65.0 ROCKWELL C MAXIMUM TEETH |
| HELIX ANGLE | 6.5000 DEGREES |
| HUB NOMINAL DIAMETER | 0.575 INCHES FIRST END |
| MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD SINGLE MATERIAL RESPONSE AND AISI/SAE 4140 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 4140 OVERALL |
| MOUNTING HOLE TYPE AND QUANTITY | 2 COUNTERBORED AND 2 THREADED TRANSVERSELY THROUGH HUB, FIRST END |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.675 INCHES FIRST END |
| NOMINAL OUTSIDE DIAMETER | 0.974 INCHES |
| PITCH DIAMETER | 0.9375 INCHES NOMINAL |
| PRECISION CLASSIFICATION | QUALITY NUMBER 12 |
| PRESSURE ANGLE | 20.0000 DEGREES |
| STYLE DESIGNATOR | PROTRUDING HUB |
| TEETH QUANTITY | 60 |
| TEETH TYPE | SINGLE HELIX |
| TEST DATA DOCUMENT | 81349-MIL-I-6868 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| TOOTH FORM | STANDARD |
| TOOTH DIRECTION | RIGHT |