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 5905-00-369-1644
NSN 6645-00-404-1785
NSN 5990-00-994-0555
NSN 2925-00-394-2332
NSN 5999-01-573-9387
NSN 5835-00-978-9640
NSN 5895-00-961-6329
NSN 6220-01-378-7467
NSN 5895-00-075-1460
NSN 5950-01-078-7272
NSN 6685-01-562-8149
NSN 6240-01-378-9060