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 5945-01-078-1061
NSN 5835-01-498-9410
NSN 5835-01-042-9943
NSN 5905-01-436-8253
NSN 5999-00-444-4739
NSN 5990-01-481-3080
NSN 5855-01-222-1242
NSN 6650-01-387-7287
NSN 5855-01-213-9076
NSN 6645-01-301-5563
NSN 5920-00-783-7859
NSN 6620-01-441-7896