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 5996-00-491-7506
NSN 5985-01-181-5420
NSN 5910-01-330-9195
NSN 6220-00-970-3797
NSN 6320-01-607-1491
NSN 6685-01-217-9309
NSN 5965-01-505-3716
NSN 5835-00-160-7142
NSN 7035-00-631-3782
NSN 6110-01-391-6497
NSN 5999-01-481-4127
NSN 6685-01-378-0550