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 6620-00-153-0982
NSN 5930-01-499-5772
NSN 6220-00-150-0039
NSN 5855-00-610-4052
NSN 6220-01-535-0892
NSN 5950-01-524-5319
NSN 6320-01-631-7828
NSN 6240-01-310-5043
NSN 7035-01-615-1670
NSN 5855-01-592-3128
NSN 6110-00-491-0891
NSN 6220-01-357-3672