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 5999-01-348-2186
NSN 7035-01-514-8522
NSN 5975-01-422-8138
NSN 5915-01-293-5990
NSN 5990-01-561-0737
NSN 5835-00-286-5432
NSN 6685-01-032-9706
NSN 6685-01-037-9178
NSN 5835-01-487-3042
NSN 6685-01-101-5787
NSN 6685-01-472-3614
NSN 5990-00-439-9058