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 5835-01-251-7301
NSN 5975-00-353-5589
NSN 5985-00-452-2228
NSN 5855-01-133-3587
NSN 6135-01-314-8416
NSN 5920-01-233-4244
NSN 5975-01-607-1760
NSN 5998-01-142-4734
NSN 5945-01-559-4505
NSN 6645-01-185-7684
NSN 6105-01-584-1562
NSN 5950-01-485-2370