| MATERIAL | ALUMINUM ALLOY |
| DIAMETER | 3.250 INCHES NOMINAL |
| OVERALL HEIGHT | 3.500 INCHES NOMINAL |
| SURFACE FINISH | FINISHED |
| FINISHED SIZE DESIGNATION | STANDARD |
| WEIGHT | 14.956 OUNCES |
| HEAD STYLE | FLAT |
| SKIRT TYPE | SOLID |
| SKIRT BOTTOM CUTAWAY FEATURE | NOT INCLUDED |
| RING GROOVE QUANTITY | 4 |
| RING GROOVE WIDTH | 0.0960 INCHES MINIMUM AND |
| 0.0970 INCHES MAXIMUM 1ST RING |
| 0.0955 INCHES MINIMUM AND |
| 0.0965 INCHES MAXIMUM 2ND RING |
| 0.1575 INCHES MAXIMUM 3RD RING |
| 0.1565 INCHES MINIMUM AND |
| 0.1575 INCHES MAXIMUM 4TH RING |
| RING GROOVE DIAMETER | 2.876 INCHES MINIMUM 1ST RING |
| 2.886 INCHES MAXIMUM 2ND RING |
| 2.866 INCHES MINIMUM 3RD RING |
| 2.876 INCHES MAXIMUM 4TH RING |
| 2.866 INCHES MINIMUM 5TH RING |
| 2.876 INCHES MAXIMUM 6TH RING |
| 2.866 INCHES MINIMUM 7TH RING |
| 2.876 INCHES MAXIMUM 8TH RING |
| OIL PASSAGE TYPE | HOLE |
| RING GROOVE POSITION BELOW PISTON PIN | NUMBER 1,NUMBER 2,NUMBER 3 AND NUMBER 4 ALL RINGS |
| CARBON GROOVE | NOT INCLUDED |
| OIL GROOVE | NOT INCLUDED |
| DISTANCE FROM PIN HOLE CENTER TO EXTREME TOP | 1.995 INCHES MINIMUM AND |
| 2.000 INCHES MAXIMUM |
| PIN HOLE BUSHING | NOT INCLUDED |
| PINHOLE DIAMETER | 0.8593 INCHES MINIMUM AND |
| 0.8596 INCHES MAXIMUM |
| DISTANCE BETWEEN PIN BOSSES | 1.380 INCHES NOMINAL |
| RETAINING RING GROOVE | INCLUDED |
| PIN | NOT INCLUDED |
| PIN TYPE FOR WHICH DESIGNED | FLOATING |
| RING | NOT INCLUDED |
| FSC APPLICATION DATA | GASOLINE RECIPROCATING ENGINES,EXCEPT AIRCRAFT; AND COMPON |
| SPEC/STD CONTROLLING DATA | |
| MANUFACTURERS CODE | 81349 |
| NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MIL-E-11275 |
| MANUFACTURERS CODE | 96906 |
| DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MS13958-1 |