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 5945-00-244-1579
NSN 5990-01-211-6136
NSN 5950-01-534-4840
NSN 6145-00-611-4834
NSN 5999-00-838-4658
NSN 5965-01-506-7576
NSN 5998-01-485-6173
NSN 2925-00-942-8541
NSN 4140-01-202-5089
NSN 6240-01-096-4572
NSN 4140-01-283-0406
NSN 6320-01-181-9474