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 5996-01-212-3066
NSN 5990-01-345-1468
NSN 5998-00-360-5462
NSN 6610-01-655-8516
NSN 6220-01-092-5177
NSN 5945-00-004-6345
NSN 6135-01-382-9278
NSN 6685-01-251-6602
NSN 6135-01-568-9107
NSN 5975-00-753-9409
NSN 5855-01-654-5225
NSN 5999-00-131-2363