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 5905-00-317-9944
NSN 5915-01-026-0457
NSN 6135-00-179-8305
NSN 6105-01-483-3698
NSN 6220-00-484-4674
NSN 5985-00-153-4205
NSN 5960-01-349-5525
NSN 5905-01-100-2000
NSN 6135-00-574-1204
NSN 5935-01-157-9385
NSN 6650-01-354-7505
NSN 5965-01-055-0102