| MATERIAL | STEEL COMP 8740 FIRST GEAR |
| STEEL COMP 4140 SECOND GEAR |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6049 MIL SPEC SINGLE MATERIAL RESPONSE FIRST GEAR |
| MIL-S-5626,COND C4 MIL SPEC SINGLE MATERIAL RESPONSE SECOND GEAR |
| SURFACE TREATMENT | OXIDE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-13924,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| HARDNESS RATING | 34.0 ROCKWELL C MINIMUM AND |
| 46.0 ROCKWELL C MAXIMUM OVERALL |
| CONSTRUCTION | ASSEMBLED |
| DESIGN TYPE | SPUR FIRST GEAR |
| SPUR SECOND GEAR |
| NOMINAL OUTSIDE DIAMETER | 2.0833 INCHES FIRST GEAR |
| 1.1250 INCHES SECOND GEAR |
| NOMINAL OVERALL LENGTH | 0.430 INCHES |
| PRECISION CLASSIFICATION | QUALITY NUMBER 8 ALL GEARS |
| BORE STYLE | PLAIN BOTH ENDS |
| BORE NOMINAL DIAMETER | 0.313 INCHES BOTH ENDS |
| HUB STYLE DESIGNATOR | PLAIN BETWEEN FIRST AND SECOND GEAR |
| HUB NOMINAL LENGTH | 0.086 INCHES BETWEEN FIRST AND SECOND GEAR |
| HUB NOMINAL DIAMETER | 0.625 INCHES BETWEEN FIRST AND SECOND GEAR |