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 6320-01-201-2776
NSN 6135-01-292-7723
NSN 6150-00-766-5748
NSN 6620-01-436-5661
NSN 6645-01-198-5785
NSN 5945-01-052-0108
NSN 6110-01-093-8263
NSN 5905-01-100-4629
NSN 7035-00-043-1325
NSN 5960-01-386-3855
NSN 5855-01-529-6369
NSN 6105-00-933-5161