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 6320-01-323-1947
NSN 5999-00-826-4558
NSN 6685-01-455-5908
NSN 2925-01-236-3547
NSN 7035-01-191-2822
NSN 5965-00-925-1725
NSN 5930-01-362-3995
NSN 6685-01-294-2567
NSN 5985-00-960-9086
NSN 6130-01-332-8965
NSN 5996-01-336-4298
NSN 5985-00-781-5397