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 6110-01-165-4473
NSN 6650-01-136-3636
NSN 5985-01-571-0364
NSN 7035-01-260-0804
NSN 4140-00-812-5224
NSN 6110-01-609-4809
NSN 5895-00-239-9138
NSN 6685-00-365-5572
NSN 6110-01-100-7638
NSN 5935-01-267-3127
NSN 5960-01-089-4019
NSN 4140-01-050-4470