| DESIGN FORM | PLAIN |
| TEETH ROW QUANTITY | 1 |
| TEETH QUANTITY PER ROW | 81 |
| TOOTH PITCH | 0.500 INCHES NOMINAL |
| MATERIAL | STEEL UNS K11801 OR |
| STEEL UNS K11802 AND |
| STEEL COMP 1022 |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-16113, GRADE M MIL SPEC 1ST MATERIAL RESPONSE AND |
| MIL-S-20166, GRADE M MIL SPEC 2ND MATERIAL RESPONSE |
| STYLE DESIGNATOR | PLAIN |
| OUTSIDE DIAMETER | 13.185 INCHES NOMINAL |
| OVERALL LENGTH | 1.188 INCHES NOMINAL |
| PITCH DIAMETER | 12.895 INCHES NOMINAL |
| FACE WIDTH | 0.284 INCHES NOMINAL |
| ASA STANDARD CHAIN NUMBER | 40 |
| HARDNESS RATING TEST METHOD | NOT RATED |
| BORE TYPE | STRAIGHT |
| BORE DIAMETER | 1.188 INCHES MINIMUM AND |
| 1.1886 INCHES MAXIMUM |
| BORE LENGTH | 1.188 INCHES NOMINAL |
| KEYING FACILITY TYPE | KEYWAY |
| QUANTITY | 1 |
| KEY WIDTH | 0.250 INCHES NOMINAL |
| KEYWAY WIDTH | 0.312 INCHES NOMINAL |
| DISTANCE FROM CENTER OF BORE TO BOTTOM OF KEYWAY | 0.844 INCHES NOMINAL |
| HUB OUTSIDE DIAMETER | 2.000 INCHES NOMINAL AA END |
| 1.875 INCHES NOMINAL BB END |
| FURNISHED ITEMS | KEYING FACILITY AND |
| LIGHTENING HOLE |
| DISTANCE FROM HUB END TO FLANGE END | 0.5455 INCHES NOMINAL AA END |
| 0.296 INCHES NOMINAL BB END |