1240-00-499-4247 WINDOW,OPTICAL INSTRUMENT Index 3120-00-499-4254 BEARING,SLEEVE

National Stock Number:
2815-00-499-4248

Federal Supply Class:
2815

National Item Identification Number:
004994248

Description:
PISTON,INTERNAL COMBUSTION ENGIN


Manufacturer Information:
YP58-1S17572STERLING ENGINE CO INC


Techincal Specification:
CARBON GROOVENOT INCLUDED
DIAMETER4.500 INCHES NOMINAL
DISTANCE BETWEEN PIN BOSSES1.875 INCHES NOMINAL
DISTANCE FROM PIN HOLE CENTER TO EXTREME TOP3.133 INCHES NOMINAL
FINISHED SIZE DESIGNATIONSTANDARD
HEAD STYLEFLAT
MATERIALSTEEL
PIN HOLE BUSHINGNOT INCLUDED
PIN TYPE FOR WHICH DESIGNEDFLOATING
PINHOLE DIAMETER1.5160 INCHES NOMINAL
PININCLUDED
OIL GROOVENOT INCLUDED
OIL PASSAGE TYPEHOLE
OVERALL HEIGHT6.688 INCHES NOMINAL
OVERSIZE0.020 INCHES NOMINAL
RETAINING RING GROOVEINCLUDED
RING GROOVE DIAMETER4.125 INCHES NOMINAL
RING GROOVE POSITION BELOW PISTON PINNUMBER 1,NUMBE 2,NUMBER 3,NUMBER 4,NUMBER 5 AND 6 ALL RINGS
RING GROOVE QUANTITY6
RING GROOVE WIDTH0.1880 INCHES NOMINAL AND 0.1250 INCHES NOMINAL
RINGNOT INCLUDED
SKIRT TYPESOLID
SKIRT BOTTOM CUTAWAY FEATURENOT INCLUDED
SURFACE FINISHFINISHED
SURFACE TREATMENTZINC
WEIGHT136.0 OUNCES


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