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 5925-01-017-8150
NSN 5975-00-276-7559
NSN 4140-01-323-0108
NSN 5975-01-134-2271
NSN 5920-01-104-0508
NSN 6650-01-507-9636
NSN 7035-01-013-0934
NSN 6220-01-290-8764
NSN 6240-01-433-5413
NSN 5930-01-395-0375
NSN 6610-00-276-8919
NSN 5950-01-527-0331