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 for spark-ignition or compression-ignition internal combustion piston engines for use in aircraft except civil
NSN 5935-00-104-7528
NSN 6220-00-812-0515
NSN 7035-01-628-5429
NSN 2925-00-596-9775
NSN 5855-01-400-1590
NSN 6645-01-121-0530
NSN 5905-00-402-7698
NSN 5915-01-294-7866
NSN 5855-00-532-0025
NSN 6650-01-073-0655
NSN 5935-00-759-1231
NSN 6110-00-283-3630