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 6610-01-485-3074
NSN 6145-01-319-2182
NSN 6130-00-323-0629
NSN 5920-01-258-5035
NSN 5950-01-232-6017
NSN 5925-01-232-3928
NSN 5920-01-650-4582
NSN 7035-00-981-7216
NSN 6645-01-518-4296
NSN 4140-01-362-5992
NSN 5895-01-605-2328
NSN 6105-00-286-5382