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 5895-01-604-6428
NSN 7035-01-518-2807
NSN 5895-00-608-8703
NSN 6110-01-435-5441
NSN 6620-01-628-2620
NSN 6645-01-463-3441
NSN 5999-01-615-0787
NSN 5996-00-363-9666
NSN 5920-01-013-5780
NSN 5930-00-655-1923
NSN 5910-00-280-1463
NSN 5998-00-246-5640