| CONSTRUCTION | SOLID |
| HARDNESS RATING | 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL |
| HARDNESS RATING | 50.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM TEETH |
| HUB NOMINAL LENGTH | 0.188 INCHES BETWEEN FIRST AND SECOND GEAR |
| HUB NOMINAL LENGTH | 0.500 INCHES FIRST END |
| HUB NOMINAL LENGTH | 1.1250 INCHES BETWEEN SECOND AND THIRD GEAR |
| HUB NOMINAL LENGTH | 1.5630 INCHES SECOND END |
| HUB STYLE DESIGNATOR | 1 STEP BOTH ENDS |
| HUB NOMINAL DIAMETER | 0.669 INCHES BETWEEN FIRST AND SECOND GEAR |
| MATERIAL DOCUMENT AND CLASSIFICATION | 66,AISI/SAE 4140 FED STD SINGLE MATERIAL RESPONSE AND 66,AISI/SAE 8640 FED STD SINGLE MATERIAL RESPONSE AND 66,AISI/SAE 8740 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 4140 AND STEEL COMP 8640 AND STEEL COMP 8740 OVERALL |
| NOMINAL OUTSIDE DIAMETER | 4.249 INCHES FOURTH GEAR |
| NOMINAL OUTSIDE DIAMETER | 1.799 INCHES FIFTH GEAR |
| NOMINAL OVERALL LENGTH | 3.375 INCHES |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-P-16232,TYPE M,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE SHAFT/HUB |
| SURFACE TREATMENT | PHOSPHATE MANGANESE SHAFT/HUB |