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 6620-01-426-2220
NSN 5960-01-573-6483
NSN 6130-01-391-6758
NSN 5915-01-090-1057
NSN 5998-01-143-3928
NSN 4140-00-196-7139
NSN 5910-00-364-6995
NSN 5930-01-168-9901
NSN 5950-01-577-8837
NSN 5985-01-199-9349
NSN 6320-00-025-9910
NSN 5925-01-519-9251