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 6240-01-082-5552
NSN 5905-01-444-9465
NSN 5945-00-287-8022
NSN 5990-01-408-6554
NSN 6620-01-551-7071
NSN 7035-01-013-9889
NSN 5965-01-147-5847
NSN 5999-01-567-4610
NSN 6130-00-613-7448
NSN 5998-00-525-2654
NSN 6150-01-088-7643
NSN 6145-01-205-9320