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 5999-01-529-7993
NSN 5915-01-555-8852
NSN 6610-00-604-0045
NSN 5965-01-138-4979
NSN 2925-01-156-4335
NSN 5990-00-153-0055
NSN 5999-00-290-5898
NSN 5855-01-622-5992
NSN 4140-00-913-1254
NSN 6620-01-454-8926
NSN 2925-01-125-9169
NSN 5920-00-082-8331