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 2925-00-147-3801
NSN 5920-00-407-7652
NSN 5915-01-336-3012
NSN 5996-01-038-8474
NSN 6645-00-052-7288
NSN 6320-00-216-8779
NSN 6610-01-040-2471
NSN 6130-01-193-0471
NSN 6150-00-666-3635
NSN 5990-01-565-2226
NSN 6145-00-138-0480
NSN 5930-00-036-0381