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 5999-01-144-6661
NSN 5960-01-487-6436
NSN 6130-00-446-1030
NSN 5905-01-560-9269
NSN 5950-00-631-6175
NSN 5985-01-227-4812
NSN 5965-01-326-0606
NSN 5996-00-683-5176
NSN 5960-01-212-8118
NSN 4140-01-447-6633
NSN 6150-01-202-8957
NSN 5915-00-717-2315