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.
NSN 6135-00-676-5807
NSN 5905-01-631-4541
NSN 6685-01-088-8538
NSN 6685-00-455-3729
NSN 6110-00-188-9874
NSN 6685-01-392-6138
NSN 5895-01-325-4960
NSN 5855-01-625-8679
NSN 2925-01-106-3552
NSN 5895-00-500-0803
NSN 5990-01-116-2181
NSN 6130-01-621-9497