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 6685-01-655-7949
NSN 6320-01-082-2970
NSN 6650-00-161-4122
NSN 5915-01-610-5168
NSN 5920-01-626-0737
NSN 5965-00-997-5764
NSN 6220-00-104-8129
NSN 5965-00-006-8004
NSN 6105-01-461-8927
NSN 6685-00-832-5741
NSN 6130-01-018-1235
NSN 5935-01-265-8074