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 6645-00-363-9775
NSN 5910-01-161-7213
NSN 6645-01-544-0408
NSN 6145-01-040-7572
NSN 6105-01-293-4788
NSN 7035-01-380-6538
NSN 5905-01-100-7108
NSN 5990-00-339-2084
NSN 6105-01-229-9232
NSN 6130-01-485-3483
NSN 6320-01-350-5570
NSN 5960-01-224-7151