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 6130-00-538-9655
NSN 6610-01-601-7648
NSN 5930-00-868-9841
NSN 6645-00-151-5280
NSN 5996-01-206-0434
NSN 5965-00-316-2768
NSN 5915-00-636-9785
NSN 6620-01-514-2949
NSN 6650-01-449-2334
NSN 6610-00-531-4696
NSN 5996-01-042-8554
NSN 6105-00-421-9545