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 4140-01-533-3791
NSN 4140-01-118-8918
NSN 5910-01-619-2914
NSN 5925-01-304-4336
NSN 5999-00-993-1171
NSN 5905-01-657-9935
NSN 6685-01-542-8635
NSN 5996-01-483-0400
NSN 5960-01-399-4327
NSN 5975-00-052-8095
NSN 5910-00-842-7306
NSN 5998-00-820-5818