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 5835-00-711-3371
NSN 6130-01-502-6729
NSN 5990-01-595-4584
NSN 6650-01-557-1080
NSN 5985-01-097-5765
NSN 6610-01-494-2126
NSN 5915-00-887-6119
NSN 6135-01-029-9315
NSN 6240-01-063-7685
NSN 5835-00-389-2816
NSN 6240-00-591-6836
NSN 6110-01-371-6862