| MATERIAL | STEEL COMP 4140 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | 66 FED STD SINGLE MATERIAL RESPONSE AND |
| AISI/SAE 4140 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | CHROMIUM BODY |
| HARDNESS RATING | 25.0 ROCKWELL C MINIMUM AND |
| 32.0 ROCKWELL C MAXIMUM OVERALL |
| TEETH QUANTITY | 32 |
| TOOTH FORM | STUB |
| PRESSURE ANGLE | 20.0000 DEGREES |
| STYLE DESIGNATOR | FLANGED END |
| PITCH DIAMETER | 4.5714 INCHES NOMINAL |
| FLANGE NOMINAL DIAMETER | 4.813 INCHES |
| NOMINAL OUTSIDE DIAMETER | 4.787 INCHES |
| FLANGE NOMINAL THICKNESS | 1.250 INCHES |
| FACE NOMINAL WIDTH | 1.500 INCHES |
| NOMINAL DISTANCE BETWEEN OUTER BODY FACE AND INNER FLANGE FACE | 1.250 INCHES |
| BORE STYLE | W/COUNTERBORE BOTH ENDS |
| BORE NOMINAL DIAMETER | 2.205 INCHES BOTH ENDS |
| COUNTERBORE NOMINAL DEPTH | 1.188 INCHES COUNTERBORE, FIRST END |
| 0.800 INCHES COUNTER BORE, SECOND END |
| COUNTERBORE NOMINAL DIAMETER | 2.440 INCHES BOTH ENDS |
| HUB NOMINAL DIAMETER | 4.200 INCHES BETWEEN BODY AND FLANGE |
| BODY STYLE | PLAIN, SOLID |
| ATTACHMENT METHOD | MOUNTING HOLE |
| MOUNTING HOLE TYPE AND QUANTITY | 4 THREADED AXIALLY THROUGH FLANGE |
| MOUNTING HOLE THREAD SERIES DESIGNATOR | UNF AXIALLY THROUGH FLANGE |
| MOUNTING HOLE NOMINAL THREAD SIZE | 0.438 INCHES AXIALLY THROUGH FLANGE |
| MOUNTING HOLE THREAD QUANTITY PER INCH | 20 AXIALLY THROUGH FLANGE |
| BOLT HOLE CIRCLE NOMINAL DIAMETER | 3.750 INCHES AXIALLY THROUGH FLANGE |
| THE MANUFACTURERS DATA | |
| MANUFACTURERS CODE | 19207 |
| DESIGN CONTROL REFERENCE | 10909240 |