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 4140-01-604-9981
NSN 5895-01-077-5716
NSN 5895-00-139-0975
NSN 5915-00-427-7798
NSN 5999-01-391-3754
NSN 5920-01-315-4862
NSN 5990-01-197-6922
NSN 5945-01-357-6492
NSN 5925-01-306-9601
NSN 6685-00-355-7965
NSN 5950-00-110-9299
NSN 2925-01-054-3190