| DISTANCE BETWEEN PIN BOSSES | 1.000 INCHES NOMINAL |
| DISTANCE FROM PIN HOLE CENTER TO EXTREME TOP | 0.993 INCHES MINIMUM AND 0.996 INCHES MAXIMUM |
| DIAMETER | 2.500 INCHES NOMINAL |
| FURNISHED ITEMS | OIL GROOVE AND RETAINING RING GROOVE |
| FINISHED SIZE DESIGNATION | STANDARD |
| HEAD STYLE | FLAT |
| OVERALL HEIGHT | 1.969 INCHES NOMINAL |
| MATERIAL | ALUMINUM |
| SKIRT TYPE | SOLID |
| PIN TYPE FOR WHICH DESIGNED | FLOATING |
| PINHOLE DIAMETER | 0.4995 INCHES MINIMUM AND 0.4998 INCHES MAXIMUM |
| RING GROOVE POSITION AND QUANTITY | NO. 3; NO. 1; NO 2 PISTON |
| RING GROOVE QUANTITY | 1 AND 2 |
| RING GROOVE WIDTH | 0.1255 INCHES MINIMUM AND 0.1265 INCHES MAXIMUM AND 0.095 INCHES MINIMUM AND 0.096 INCHES MAXIMUM |
| RING GROOVE DIAMETER | 2.226 INCHES MINIMUM AND 2.231 INCHES MAXIMUM |
| SURFACE FINISH | FINISHED |