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 6620-01-457-9476
NSN 6130-01-400-6123
NSN 6105-00-194-4914
NSN 6240-01-308-1848
NSN 5835-01-190-5192
NSN 5920-01-423-8410
NSN 6220-01-472-1791
NSN 6320-00-089-9426
NSN 5998-01-104-5462
NSN 7035-01-648-6860
NSN 5990-00-962-2806
NSN 5950-01-484-1155