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 5905-01-454-0139
NSN 5910-01-089-7080
NSN 6645-01-383-8139
NSN 5965-01-120-6086
NSN 6145-00-815-0744
NSN 5985-00-238-2595
NSN 5985-01-484-5027
NSN 5960-00-284-7916
NSN 5998-01-270-6909
NSN 6610-00-600-1882
NSN 5975-01-250-0124
NSN 6130-01-251-9185