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 5930-01-159-2395
NSN 5835-01-647-6426
NSN 6110-00-980-5454
NSN 5965-01-504-2340
NSN 5985-01-297-3386
NSN 2925-01-326-0908
NSN 6645-00-445-8143
NSN 6645-00-372-2618
NSN 5935-00-571-8123
NSN 6110-01-351-7307
NSN 5925-00-802-8626
NSN 5960-01-324-8751