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 6650-01-321-0250
NSN 6110-00-840-6560
NSN 5905-01-495-3705
NSN 6130-01-422-8736
NSN 6220-00-175-7849
NSN 5855-01-191-3404
NSN 5935-00-128-8136
NSN 5960-00-170-6447
NSN 5960-00-758-5064
NSN 5935-01-344-9147
NSN 5985-00-237-5419
NSN 5998-01-583-3239