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 5985-01-461-9895
NSN 5835-01-228-8666
NSN 5835-00-233-6327
NSN 6105-01-333-5456
NSN 5835-01-085-9591
NSN 5935-00-542-3634
NSN 5990-00-226-1152
NSN 5915-01-294-7616
NSN 6610-00-462-3879
NSN 6130-00-721-4156
NSN 6645-01-465-4915
NSN 5930-01-406-1864