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 6130-01-118-0145
NSN 6150-00-334-0331
NSN 5975-01-169-9405
NSN 5985-01-065-1675
NSN 6620-01-395-2968
NSN 5855-01-475-4454
NSN 6650-01-306-2941
NSN 6105-01-451-8440
NSN 5925-01-447-5631
NSN 5925-00-880-8379
NSN 5990-01-177-2838
NSN 7035-01-052-3815