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 5855-01-085-5354
NSN 6220-00-732-8276
NSN 5855-01-557-1798
NSN 2925-01-629-9416
NSN 6240-01-412-0715
NSN 5960-00-501-4841
NSN 5998-00-078-4423
NSN 5950-01-407-7422
NSN 5910-00-827-1211
NSN 5930-00-932-3143
NSN 6130-00-139-1055
NSN 6685-00-870-2760