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 5835-01-161-7461
NSN 5998-00-553-3398
NSN 4140-01-475-8128
NSN 6135-01-609-3630
NSN 6145-01-383-3824
NSN 6645-01-462-2101
NSN 5996-00-060-3289
NSN 6320-01-078-8257
NSN 6620-01-596-3642
NSN 6135-01-523-3198
NSN 6320-00-731-6134
NSN 5920-00-239-6552