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 6130-01-576-0784
NSN 6135-01-159-3032
NSN 5855-01-503-0775
NSN 5905-00-125-2505
NSN 5999-01-426-8740
NSN 6645-01-571-8578
NSN 5920-00-321-8455
NSN 6685-01-376-5578
NSN 5990-01-360-2900
NSN 5998-00-284-3804
NSN 5835-01-062-2235
NSN 5910-01-534-7051