Six holes around top of flange
A tubular metal item designed primarily as a replaceable wear surface within the cylinder bore of a piston type internal combustion engine, compressor, or reciprocating pump.
NSN 5960-01-462-1864
NSN 6685-01-634-0611
NSN 5999-01-420-5967
NSN 5945-00-350-3387
NSN 5915-00-844-5713
NSN 5996-01-633-7979
NSN 5915-01-352-5871
NSN 4140-01-482-4097
NSN 6240-01-474-5446
NSN 5999-00-991-3239
NSN 6150-01-339-5323
NSN 6320-01-352-5653