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 7035-01-398-3494
NSN 6620-00-959-6614
NSN 5945-01-516-1961
NSN 5999-01-377-5248
NSN 5950-01-197-7625
NSN 6220-01-127-2125
NSN 6650-01-246-8262
NSN 5910-00-756-8747
NSN 6130-01-544-3864
NSN 5985-01-268-1359
NSN 5975-00-979-6528
NSN 6145-01-423-9070