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 5920-01-266-5749
NSN 5990-01-244-9998
NSN 2925-01-535-7235
NSN 5996-00-373-9001
NSN 5950-01-412-0262
NSN 4140-00-331-0685
NSN 5910-01-025-6563
NSN 6620-00-155-2608
NSN 5930-01-429-6774
NSN 6240-01-534-4007
NSN 6320-01-029-4220
NSN 6685-01-451-4613