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 6220-01-625-4065
NSN 5950-00-146-2452
NSN 5935-01-236-9688
NSN 5910-00-757-7758
NSN 5925-01-574-0451
NSN 6150-00-017-4099
NSN 6135-01-142-2417
NSN 6610-00-064-5514
NSN 6145-01-485-4690
NSN 6220-00-974-9305
NSN 2925-01-271-8727
NSN 6240-01-398-2887