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 6110-01-246-4642
NSN 6220-01-624-4820
NSN 6240-00-469-7986
NSN 5950-00-103-9395
NSN 5920-01-497-9528
NSN 6610-01-004-2906
NSN 6105-01-291-4860
NSN 6220-01-454-0354
NSN 6110-01-498-8960
NSN 6110-01-231-6720
NSN 6610-01-005-5832
NSN 5855-00-436-3852