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 5999-00-404-7913
NSN 5999-00-876-6781
NSN 5990-01-633-9503
NSN 6105-01-441-9312
NSN 6240-01-211-4507
NSN 6105-01-565-0333
NSN 5945-00-970-1443
NSN 6150-00-987-0877
NSN 5855-01-434-2825
NSN 5905-00-723-3697
NSN 6645-00-775-2172
NSN 5990-01-294-6198