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 6105-01-483-8547
NSN 5985-00-948-7696
NSN 5930-01-223-0516
NSN 5895-01-189-6167
NSN 5855-01-118-2210
NSN 5998-01-532-8909
NSN 5910-00-372-0947
NSN 5895-01-287-2102
NSN 5998-00-546-7841
NSN 5905-01-097-5724
NSN 5905-01-012-1823
NSN 6110-01-222-3213