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 5985-00-262-5109
NSN 5996-00-482-0552
NSN 7035-01-316-7860
NSN 6135-00-556-8318
NSN 5960-01-029-2940
NSN 5985-00-222-1273
NSN 5999-01-140-2968
NSN 6135-00-009-4100
NSN 6135-01-547-3983
NSN 5920-00-808-0037
NSN 5920-00-216-8665
NSN 6320-01-439-5264