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 5925-01-439-9697
NSN 6610-00-010-9714
NSN 5985-00-350-6102
NSN 5996-01-391-8050
NSN 5975-01-409-2948
NSN 5975-00-828-3505
NSN 5960-01-200-4621
NSN 6220-01-250-0171
NSN 5965-00-223-4739
NSN 5950-01-634-0677
NSN 5910-01-173-1094
NSN 7035-01-049-6776