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 5930-01-144-6148
NSN 6110-01-615-0198
NSN 4140-01-632-3377
NSN 4140-01-027-7516
NSN 6685-01-432-0055
NSN 6220-00-863-7838
NSN 6610-01-167-8747
NSN 6145-00-296-0085
NSN 2925-00-617-0826
NSN 6610-01-498-4063
NSN 5910-01-121-1132
NSN 5996-00-205-2933