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 of taps, cocks, valves and similar appliances, nesoi
NSN 6685-00-118-0594
NSN 5930-01-158-0291
NSN 5960-01-325-2241
NSN 5945-01-089-7649
NSN 2925-00-659-9256
NSN 6110-01-411-6619
NSN 6645-00-415-0884
NSN 5960-01-391-4701
NSN 6620-00-349-4703
NSN 5905-01-179-0335
NSN 5975-01-440-9080
NSN 5950-01-424-0257