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 5965-01-101-7624
NSN 6320-00-456-2092
NSN 5910-01-377-0773
NSN 6240-01-054-2289
NSN 6130-01-388-5336
NSN 4140-01-257-1089
NSN 6145-01-492-9840
NSN 6685-01-541-4932
NSN 5925-01-327-5728
NSN 6150-00-233-6356
NSN 6220-00-732-2026
NSN 6650-00-726-4242