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 5975-00-508-1505
NSN 6220-01-585-0025
NSN 6620-00-740-3699
NSN 6610-01-444-4001
NSN 5960-01-364-1318
NSN 5960-01-245-0029
NSN 5905-01-212-2792
NSN 6650-01-661-1249
NSN 5925-01-035-7440
NSN 6610-01-468-0679
NSN 6150-00-951-0865
NSN 6110-01-279-1992