| DESIGN FORM | PLAIN |
| TEETH ROW QUANTITY | 1 |
| TEETH QUANTITY PER ROW | 9 |
| TOOTH PITCH | 0.250 INCHES NOMINAL |
| MATERIAL | STEEL COMP 4130 |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-6758, COND F4 MIL SPEC SINGLE MATERIAL RESPONSE |
| STYLE DESIGNATOR | PLAIN |
| OUTSIDE DIAMETER | 0.857 INCHES NOMINAL |
| OVERALL LENGTH | 0.471 INCHES MINIMUM AND |
| 0.477 INCHES MAXIMUM |
| PITCH DIAMETER | 0.751 INCHES NOMINAL |
| FACE WIDTH | 0.103 INCHES MINIMUM AND |
| 0.110 INCHES MAXIMUM |
| SURFACE TREATMENT | CADMIUM |
| ASA STANDARD CHAIN NUMBER | 25 |
| HARDNESS RATING TEST METHOD | ROCKWELL |
| TEETH HARDNESS RATING | 28.0 ROCKWELL C MINIMUM AND |
| 33.0 ROCKWELL C MAXIMUM |
| METALLIC HARDNESS RATING AND LOCATION | 28.0 ROCKWELL C MINIMUM BODY AND |
| 33.0 ROCKWELL C MAXIMUM BODY |
| BORE TYPE | STRAIGHT |
| BORE DIAMETER | 0.315 INCHES MINIMUM AND |
| 0.316 INCHES MAXIMUM |
| BORE LENGTH | 0.471 INCHES MINIMUM AND |
| 0.474 INCHES MAXIMUM |
| PROTRUDING HUB CHARACTERISTIC | PLAIN |
| HUB OUTSIDE DIAMETER | 0.440 INCHES NOMINAL AA END |
| DISTANCE FROM HUB END TO FLANGE END | 0.367 INCHES MINIMUM AND |
| 0.368 INCHES MAXIMUM AA END |
| SECURING METHOD | DRILLED HOLE |
| SECURING LOCATION | AA END |
| SECURING HOLE QUANTITY | 1 |
| HOLE LOCATION | LOCATION ON HUB PORTION OF GEAR BETWEEN HUB END AND FACE |
| DRILLED HOLE DIAMETER | 0.078 INCHES NOMINAL |
| THE MANUFACTURERS DATA | |
| MANUFACTURERS CODE | 3HRL4 |
| DESIGN CONTROL REFERENCE | 4067-40 |