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 5996-01-499-1900
NSN 6240-01-296-0587
NSN 5895-01-338-9894
NSN 5985-00-625-7144
NSN 2925-01-079-6229
NSN 5996-00-589-9175
NSN 6685-01-252-9470
NSN 5895-00-225-9589
NSN 6110-01-503-7580
NSN 5935-00-597-3610
NSN 6145-00-069-8964
NSN 5925-01-465-9305