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 5950-01-242-7549
NSN 6150-00-412-4038
NSN 6610-00-866-8452
NSN 5965-01-461-2850
NSN 6150-01-574-8355
NSN 5985-01-013-9044
NSN 6220-01-525-0373
NSN 4140-01-345-7808
NSN 5975-01-497-5371
NSN 5975-01-560-3456
NSN 6620-01-415-2307
NSN 5930-00-082-0441