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 5905-00-163-4584
NSN 5996-00-165-3097
NSN 5945-00-326-1839
NSN 5905-01-145-0413
NSN 6240-01-509-0730
NSN 6130-00-756-4271
NSN 6130-00-261-4942
NSN 6620-01-609-9513
NSN 5915-01-343-0941
NSN 5920-01-240-8022
NSN 5915-01-552-2368
NSN 6610-00-569-2992