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 5960-01-061-0448
NSN 5950-01-518-7337
NSN 5920-01-194-9541
NSN 5930-00-374-1570
NSN 4140-00-997-2596
NSN 6610-00-490-7477
NSN 5835-01-386-4027
NSN 7035-00-001-4087
NSN 7035-00-946-2642
NSN 6650-01-279-0658
NSN 5996-01-438-0323
NSN 5855-01-448-9794