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 5999-01-459-4156
NSN 5935-00-451-5226
NSN 6110-00-222-8955
NSN 6320-01-399-6177
NSN 6135-01-373-2518
NSN 6145-00-262-3345
NSN 6620-01-554-8169
NSN 5835-01-068-8973
NSN 2925-01-381-5307
NSN 5905-01-014-7735
NSN 5915-01-439-1379
NSN 4140-01-308-9649