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 and accessories, nesoi, of bodies (including cabs) of heading 8701 to 8705
NSN 2925-01-424-0235
NSN 6105-00-527-7702
NSN 6320-01-311-6576
NSN 5950-00-665-5103
NSN 5920-01-228-6830
NSN 6620-01-533-1059
NSN 6105-00-407-6073
NSN 5990-01-357-6175
NSN 6130-01-165-3223
NSN 5915-01-142-2018
NSN 6645-01-599-2311
NSN 6685-01-378-5078