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 5905-01-584-4677
NSN 6105-01-305-2312
NSN 6685-00-107-0852
NSN 4140-01-382-3864
NSN 6650-01-315-4043
NSN 6685-01-160-8590
NSN 5960-01-378-1729
NSN 5990-01-482-5950
NSN 6620-01-390-9551
NSN 5855-01-657-7657
NSN 5915-00-063-3689
NSN 5835-00-665-3395