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 nesoi, of compressors other than refrigerating and air conditioning compressors
NSN 6145-00-564-5591
NSN 2925-00-312-8568
NSN 2925-01-534-7314
NSN 5835-01-449-7511
NSN 5990-00-741-5452
NSN 5895-00-723-2059
NSN 5905-01-179-5251
NSN 6620-01-252-4719
NSN 5998-00-403-8697
NSN 6610-00-730-5883
NSN 2925-01-553-5132
NSN 5835-01-652-4959