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 6620-01-544-1083
NSN 6145-00-186-6291
NSN 5950-00-505-0295
NSN 5975-01-472-5206
NSN 4140-00-456-2268
NSN 5950-01-487-3750
NSN 5925-01-303-8381
NSN 5996-01-501-7889
NSN 6620-01-422-9708
NSN 5990-00-543-2755
NSN 5855-01-093-3080
NSN 5935-00-974-6246