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 6145-01-503-0487
NSN 4140-00-152-7092
NSN 6645-01-503-2240
NSN 5990-00-892-1606
NSN 5975-01-004-7966
NSN 6620-01-571-0900
NSN 5910-01-600-2613
NSN 5998-01-377-3373
NSN 5985-01-441-5786
NSN 6150-01-174-5568
NSN 5990-00-766-7179
NSN 5975-01-386-3061