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 4140-00-800-7204
NSN 5975-00-734-6243
NSN 6130-00-573-8076
NSN 6685-00-858-6675
NSN 6645-01-586-8296
NSN 5905-01-056-5434
NSN 5835-01-341-7446
NSN 5835-01-303-6563
NSN 5985-01-056-5179
NSN 6110-01-035-5735
NSN 5960-00-809-2028
NSN 5996-00-808-8707