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 5895-00-885-2285
NSN 6220-01-624-4820
NSN 6320-00-242-3300
NSN 7035-00-574-4223
NSN 6145-01-377-0706
NSN 6150-01-052-1371
NSN 7035-01-202-8172
NSN 5985-00-107-5407
NSN 5910-00-144-4383
NSN 5960-00-518-4704
NSN 6240-00-756-5149
NSN 5950-01-326-6271