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 6105-01-391-6595
NSN 5990-00-989-4080
NSN 6145-01-397-2709
NSN 5960-00-945-1107
NSN 6240-01-645-4797
NSN 5855-00-149-0766
NSN 6150-00-900-4984
NSN 6620-01-628-2620
NSN 6130-00-461-8634
NSN 6110-00-575-9795
NSN 7035-01-369-1445
NSN 5935-01-008-8734