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 5999-01-384-2157
NSN 6685-00-032-7311
NSN 6610-01-074-0470
NSN 5920-01-592-0161
NSN 6145-01-523-2811
NSN 6610-00-798-8562
NSN 5855-00-337-3679
NSN 5975-01-613-9762
NSN 5996-00-081-8057
NSN 5935-00-988-3433
NSN 5935-01-384-7864
NSN 7035-00-064-7008