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 6145-00-702-8816
NSN 5925-01-634-0664
NSN 5855-01-278-8922
NSN 5935-00-472-0956
NSN 7035-01-158-7673
NSN 5935-01-476-2969
NSN 5905-01-317-4313
NSN 6150-00-558-5508
NSN 5925-01-173-7286
NSN 6145-01-371-5752
NSN 6135-01-412-8929
NSN 5950-01-008-1996