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 nesoi, of compressors other than refrigerating and air conditioning compressors
NSN 4140-01-574-0676
NSN 5925-00-435-6914
NSN 5925-01-291-6863
NSN 5855-00-405-4532
NSN 6130-00-421-8520
NSN 5930-00-978-2111
NSN 6645-00-248-5434
NSN 5998-01-314-0747
NSN 5935-01-132-0034
NSN 6645-01-121-0530
NSN 5895-01-591-5142
NSN 5895-01-401-5388