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 5998-00-523-9848
NSN 5935-01-027-0022
NSN 5895-00-276-7916
NSN 6650-01-297-4376
NSN 5965-00-983-1815
NSN 5960-01-468-5785
NSN 6645-01-607-7931
NSN 5998-01-508-7664
NSN 5998-01-518-1536
NSN 6610-01-158-2988
NSN 6685-01-359-2723
NSN 6320-01-523-4954