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 5945-01-442-5669
NSN 5930-01-322-8107
NSN 5895-01-585-8166
NSN 6620-00-197-5130
NSN 2925-00-265-7539
NSN 5935-00-909-0584
NSN 5996-00-293-4687
NSN 6105-01-515-7201
NSN 6150-00-467-5808
NSN 5950-01-521-7950
NSN 6110-00-099-7113
NSN 5915-00-148-0067