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 5925-01-033-0457
NSN 5965-00-289-6280
NSN 5930-00-369-1454
NSN 6645-01-011-6459
NSN 5985-00-615-9766
NSN 5998-00-167-1377
NSN 5935-01-500-2091
NSN 5945-00-793-9802
NSN 5915-00-501-3664
NSN 5925-00-337-8138
NSN 5905-00-234-9828
NSN 5965-00-171-1265