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 4140-01-349-1016
NSN 5945-01-412-5121
NSN 5950-01-089-1341
NSN 7035-00-009-8705
NSN 5905-01-633-3186
NSN 5996-01-428-2807
NSN 5998-01-044-0521
NSN 5835-01-158-6878
NSN 5996-00-138-3072
NSN 4140-00-218-3579
NSN 6130-00-528-7838
NSN 2925-01-528-7333