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 6145-01-512-2903
NSN 6240-01-378-8043
NSN 5990-01-400-2195
NSN 4140-01-226-2182
NSN 5835-01-100-3265
NSN 5945-01-429-5736
NSN 6620-01-535-0409
NSN 6610-01-494-3703
NSN 5965-00-842-9060
NSN 5960-00-848-1900
NSN 5990-01-307-4489
NSN 6685-01-495-2306