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 6645-00-121-7566
NSN 5925-01-058-1265
NSN 5855-01-447-9165
NSN 6240-01-064-0949
NSN 5950-01-206-4403
NSN 6685-00-270-8070
NSN 5915-01-449-0859
NSN 5915-01-496-4687
NSN 6145-01-161-9149
NSN 6240-00-161-8099
NSN 6240-00-072-9966
NSN 6620-01-647-9935