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 for compression-ignition internal combustion piston engines (diesel), nesoi
NSN 5990-01-333-6583
NSN 5960-01-599-9821
NSN 5930-01-655-6521
NSN 2925-01-063-7876
NSN 4140-00-247-4773
NSN 6130-01-245-5750
NSN 6145-00-423-1563
NSN 5930-00-905-6187
NSN 5965-00-067-7393
NSN 6645-00-171-9639
NSN 5985-01-628-6048
NSN 5905-01-574-2620