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 4140-01-544-1342
NSN 5965-00-408-5501
NSN 5975-01-332-3464
NSN 5998-01-008-1403
NSN 6145-01-634-0388
NSN 6650-01-534-2769
NSN 5990-01-599-7106
NSN 7035-01-482-6048
NSN 6220-00-195-4655
NSN 5999-01-037-5593
NSN 6620-01-210-9002
NSN 5985-00-927-4466