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 bearing housings & plain shaft bearings, housed bearings, clutches, universal joints, flywheels and transmission shafts
NSN 5996-01-131-5238
NSN 5985-01-492-7955
NSN 5905-00-584-8085
NSN 6685-01-642-8349
NSN 5999-00-296-9886
NSN 6135-01-555-4283
NSN 5895-01-010-9416
NSN 6145-01-128-6778
NSN 6685-00-090-0347
NSN 5960-01-029-4253
NSN 6620-01-495-7446
NSN 5990-01-326-2677