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 5930-01-456-6732
NSN 6620-01-447-9186
NSN 2925-00-845-1480
NSN 6105-01-105-0042
NSN 6650-00-304-6987
NSN 5935-01-162-7678
NSN 6240-01-608-4990
NSN 7035-01-362-4924
NSN 5905-01-350-1196
NSN 6650-00-255-8269
NSN 5905-01-618-1446
NSN 6650-01-384-1657