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 5925-01-160-8779
NSN 6620-00-309-6679
NSN 6130-00-390-9718
NSN 5999-01-034-2424
NSN 6620-00-824-2176
NSN 6135-00-891-4944
NSN 6610-01-414-1755
NSN 6240-00-761-2244
NSN 5920-01-049-8949
NSN 5985-00-001-2749
NSN 5920-01-364-0769
NSN 6620-01-158-5111