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 5985-01-300-0821
NSN 6610-00-856-7136
NSN 6320-01-585-8468
NSN 6105-01-215-1174
NSN 5960-01-350-5332
NSN 6130-01-626-3659
NSN 5930-01-632-1494
NSN 6105-01-605-1972
NSN 5945-01-346-4021
NSN 2925-00-567-3643
NSN 6650-00-877-1797
NSN 5835-01-012-1436