A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 6135-00-276-7625
NSN 5935-01-422-3228
NSN 5910-00-418-4425
NSN 6685-00-291-1036
NSN 5835-00-446-2944
NSN 5835-01-187-8986
NSN 6105-01-577-5310
NSN 6130-01-139-4491
NSN 5855-01-381-6052
NSN 5998-01-523-1752
NSN 5999-00-477-7589
NSN 5965-01-526-8447