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 6620-01-541-1561
NSN 6150-01-233-5306
NSN 5895-00-688-9075
NSN 6645-01-486-1139
NSN 5910-01-531-5980
NSN 5930-01-301-9151
NSN 5975-01-262-6323
NSN 5930-01-423-7777
NSN 6320-00-098-2858
NSN 6145-01-186-9405
NSN 5960-00-285-1001
NSN 5945-00-629-4328