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 6650-01-259-0918
NSN 5996-01-582-7418
NSN 6320-00-857-4073
NSN 6150-00-225-1874
NSN 6610-01-396-5628
NSN 5835-01-596-9908
NSN 5960-01-495-0859
NSN 5998-01-533-0129
NSN 5985-01-342-7920
NSN 5996-01-459-6509
NSN 5910-01-383-4894
NSN 6685-01-094-6455