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 5999-00-683-2161
NSN 6240-01-558-4104
NSN 5975-01-484-1440
NSN 6620-01-602-8402
NSN 5975-00-903-2284
NSN 6685-01-523-7894
NSN 4140-00-336-1728
NSN 6105-01-247-4804
NSN 6110-00-183-7788
NSN 6685-01-593-1212
NSN 6110-00-422-2029
NSN 6130-00-347-7023