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 5998-01-474-2791
NSN 5905-00-185-6237
NSN 5985-01-037-0923
NSN 2925-01-225-0713
NSN 5905-01-053-2025
NSN 6135-00-998-5884
NSN 5945-01-316-1643
NSN 5855-01-565-0375
NSN 6150-00-198-7395
NSN 6240-00-422-1278
NSN 5925-01-287-6632
NSN 5960-00-398-1029