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 4140-00-959-4255
NSN 5990-00-067-6791
NSN 5975-01-437-6699
NSN 6645-01-089-6459
NSN 6240-00-319-0173
NSN 5985-01-253-2659
NSN 6645-00-177-4729
NSN 6145-01-407-5938
NSN 5999-00-121-9142
NSN 5975-01-471-4611
NSN 5985-00-557-6117
NSN 5920-01-146-4503