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 6110-01-074-4228
NSN 5998-00-442-9116
NSN 5855-01-492-9795
NSN 6130-01-643-1982
NSN 6135-01-468-6491
NSN 5925-01-241-8464
NSN 6135-01-163-0332
NSN 5985-01-478-9860
NSN 5999-00-202-0788
NSN 6220-01-069-3685
NSN 5950-01-345-2710
NSN 5930-01-554-0034