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 4140-01-135-3740
NSN 5985-00-594-8824
NSN 5996-00-925-1324
NSN 5998-00-994-5827
NSN 6645-00-650-3405
NSN 5925-00-347-0566
NSN 5990-01-127-1108
NSN 5998-01-285-0761
NSN 6320-01-439-5264
NSN 5998-01-443-2552
NSN 7035-00-908-4933
NSN 5895-01-267-5250