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 5910-01-557-8323
NSN 5835-00-484-1529
NSN 6685-01-441-0854
NSN 6610-01-499-0776
NSN 6610-01-276-7766
NSN 5835-01-245-8077
NSN 5930-01-360-6497
NSN 5965-00-100-1291
NSN 6110-01-219-5233
NSN 6685-00-722-8574
NSN 6105-01-568-8393
NSN 5930-00-042-9436