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 5965-01-156-7013
NSN 6220-00-489-8571
NSN 5835-01-373-9506
NSN 6110-01-155-4048
NSN 6130-01-027-4288
NSN 6650-01-115-8431
NSN 5950-00-925-1895
NSN 2925-01-394-9658
NSN 6220-00-397-6910
NSN 6620-01-106-3553
NSN 6685-00-057-2777
NSN 5895-01-174-2462