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 5990-01-040-6358
NSN 5996-00-153-3216
NSN 6150-00-148-8515
NSN 6145-00-663-6133
NSN 6320-01-631-7828
NSN 5965-00-671-4119
NSN 6110-00-883-3505
NSN 2925-01-541-7217
NSN 5950-01-611-8484
NSN 6105-01-509-9544
NSN 5999-00-452-6389
NSN 5950-01-512-6199