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 6620-00-963-1319
NSN 6685-01-106-0962
NSN 6110-01-432-0003
NSN 6130-01-196-6392
NSN 5975-00-484-2223
NSN 6320-01-039-5891
NSN 6650-00-563-0798
NSN 5990-01-633-9503
NSN 6240-00-263-0549
NSN 5935-01-492-7908
NSN 6150-00-284-0511
NSN 6685-01-244-1522