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 6220-01-140-6613
NSN 6620-00-270-3275
NSN 5990-00-886-3685
NSN 5905-00-202-9255
NSN 4140-01-322-3227
NSN 4140-01-247-2327
NSN 7035-00-541-8516
NSN 5915-01-328-5439
NSN 5915-01-023-8930
NSN 6320-00-456-0836
NSN 5935-00-596-1755
NSN 5975-01-394-5954