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 for steam turbines
NSN 6135-00-266-9762
NSN 6105-00-341-5461
NSN 6105-01-440-3426
NSN 5950-00-702-3022
NSN 6220-00-614-7174
NSN 6135-01-050-3194
NSN 5945-00-289-3715
NSN 6685-01-271-5058
NSN 6240-00-583-9863
NSN 6130-01-219-2890
NSN 5930-01-563-3390
NSN 5905-00-904-4412