A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Gaskets,washers & other seals
NSN 5835-01-392-7683
NSN 5895-01-461-0970
NSN 5985-01-230-1024
NSN 6650-01-131-0323
NSN 5855-01-364-1005
NSN 6130-01-487-1743
NSN 5999-01-457-1924
NSN 5999-00-719-4362
NSN 6220-00-516-9270
NSN 5965-00-605-8239
NSN 6645-01-238-8660
NSN 5990-01-502-8209