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 5998-00-877-0298
NSN 5895-01-341-4614
NSN 6145-01-442-6064
NSN 6650-00-486-7924
NSN 5998-01-633-8933
NSN 5960-00-436-0813
NSN 5975-01-444-1480
NSN 6645-01-042-0467
NSN 5965-01-167-2269
NSN 6610-00-114-2877
NSN 6240-01-594-0059
NSN 4140-01-486-2030