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 5999-01-565-0914
NSN 5945-00-400-1787
NSN 6320-01-236-9562
NSN 5905-00-823-7796
NSN 5960-01-181-2143
NSN 5996-00-833-2521
NSN 5855-01-286-9928
NSN 6105-00-330-0882
NSN 6650-01-458-7521
NSN 5990-01-421-5342
NSN 6610-01-351-4607
NSN 5930-00-289-6709