| HARDNESS RATING TEST METHOD | ROCKWELL |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A148/A148M ASSN STD SINGLE MATERIAL RESPONSE |
| MATERIAL | STEEL |
| III PART NAME ASSIGNED BY CONTROLLING AGENCY | CARRIER, DRIVE SPROCKET |
| PROPRIETARY CHARACTERISTICS | PACS |
| OUTSIDE DIAMETER | 18.864 INCHES MINIMUM AND 18.894 INCHES MAXIMUM |
| OVERALL LENGTH | 16.595 INCHES MINIMUM AND 16.655 INCHES MAXIMUM |
| TEETH HARDNESS RATING | 47.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM |
| TEETH QUANTITY PER ROW | 96 |