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 5965-01-512-8842
NSN 6320-00-108-7049
NSN 5910-00-255-4054
NSN 5935-01-068-0790
NSN 6130-01-259-1478
NSN 6645-01-136-0562
NSN 5960-01-306-4606
NSN 5999-01-185-3022
NSN 5895-01-399-7914
NSN 6220-01-516-4926
NSN 6220-01-493-7522
NSN 6110-00-962-7858