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 nesoi, of compressors other than refrigerating and air conditioning compressors
NSN 5920-01-502-3177
NSN 5945-01-096-3858
NSN 6240-01-624-8924
NSN 2925-01-172-9209
NSN 5915-00-764-8686
NSN 5965-01-367-7380
NSN 2925-01-384-4139
NSN 5925-00-566-4169
NSN 5960-01-419-2167
NSN 6135-01-292-7723
NSN 5999-01-568-4112
NSN 6110-00-392-6173