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 5975-01-362-7311
NSN 5950-01-448-5503
NSN 5990-01-259-7138
NSN 6620-01-325-6295
NSN 6645-00-735-1481
NSN 5930-01-298-4137
NSN 5996-01-621-7178
NSN 6150-00-105-9935
NSN 5998-01-142-6202
NSN 6320-01-631-7828
NSN 6220-01-171-0162
NSN 6220-01-056-8792