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 5930-01-375-2633
NSN 5975-00-789-0743
NSN 2925-01-228-4437
NSN 5945-01-421-5754
NSN 6220-01-501-4476
NSN 6135-01-354-5535
NSN 5999-01-502-8775
NSN 2925-00-580-4931
NSN 5999-01-433-5438
NSN 5930-01-355-1157
NSN 5998-01-647-8292
NSN 5960-00-050-4591