| MATERIAL | STEEL COMP 8620 OR |
| STEEL COMP E9310 OR |
| STEEL COMP 9310H OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-8690, AISI 8620 MIL SPEC SINGLE MATERIAL RESPONSE OR |
| AMS 6260, SAE 9310 MIL STD SINGLE MATERIAL RESPONSE OR |
| ASTM A304, GR 9310H NATIONAL SPEC SINGLE MATERIAL RESPONSE OR |
| AMS 6265 MIL STD SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | OXIDE OVERALL |
| HARDNESS RATING | 89.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND |
| 91.5 ROCKWELL SUPERFICIAL 15-N MAXIMUM TEETH |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-13924, CL 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| TEETH QUANTITY | 26 |
| TEETH TYPE | SINGLE HELIX |
| TOOTH FORM | STANDARD |
| TOOTH DIRECTION | RIGHT |
| PRESSURE ANGLE | 20.0000 DEGREES |
| HELIX ANGLE | 20.364108 DEGREES |
| PRECISION CLASSIFICATION | QUALITY NUMBER 10 |
| STYLE DESIGNATOR | PROTRUDING HUB |
| PITCH DIAMETER | 0.8666 INCHES NOMINAL |
| NOMINAL OUTSIDE DIAMETER | 0.928 INCHES |
| FACE NOMINAL WIDTH | 0.438 INCHES |
| NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END | 0.319 INCHES FIRST END |
| BORE STYLE | PLAIN BOTH ENDS |
| BORE NOMINAL DIAMETER | 0.4995 INCHES BOTH ENDS |
| HUB STYLE DESIGNATOR | PINNED FIRST END |
| HUB NOMINAL DIAMETER | 0.688 INCHES FIRST END |
| BODY STYLE | PLAIN, SOLID |
| ATTACHMENT METHOD | MOUNTING HOLE AND |
| SETSCREWS |
| MOUNTING HOLE TYPE AND QUANTITY | 1 PLAIN TRANSVERSELY THROUGH HUB, FIRST END |
| MOUNTING HOLE NOMINAL DIAMETER | 0.093 INCHES TRANSVERSELY THROUGH HUB, FIRST END |
| SPECIAL FEATURES | HUB CUT BACK 0.069 IN. LEAVING 2 TABS. USED ON GFCS MK86 |