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 5999-01-310-2624
NSN 5905-01-649-5802
NSN 7035-00-371-7749
NSN 5975-00-840-5844
NSN 5998-01-519-7384
NSN 5998-00-131-2760
NSN 5996-00-308-0994
NSN 5945-01-177-9653
NSN 5960-01-065-0273
NSN 6650-01-089-7777
NSN 5960-01-458-0774
NSN 6645-01-485-6536