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 5950-00-197-1979
NSN 6110-01-426-6924
NSN 5945-01-461-2401
NSN 5990-01-482-5950
NSN 6105-01-434-3572
NSN 6650-00-399-6269
NSN 6610-00-244-2816
NSN 6135-01-333-6737
NSN 5985-01-093-6966
NSN 6220-00-629-6273
NSN 5985-01-521-3230
NSN 7035-01-227-2546