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 6610-01-492-2630
NSN 5996-01-393-4690
NSN 5990-00-067-6791
NSN 4140-01-196-5984
NSN 6685-01-212-3259
NSN 6240-01-630-3442
NSN 6135-01-577-0811
NSN 6645-01-645-9117
NSN 5965-01-231-5047
NSN 5998-01-319-5607
NSN 6130-00-880-2589
NSN 6610-01-572-6625