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 5920-01-139-5137
NSN 5996-01-533-7803
NSN 5998-00-633-5169
NSN 6150-01-487-5376
NSN 6320-01-631-7828
NSN 2925-01-604-8984
NSN 5998-01-004-8215
NSN 4140-00-790-7995
NSN 5835-00-905-7165
NSN 5855-01-083-9053
NSN 2925-01-084-3347
NSN 5990-01-554-4128