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 6220-01-629-0190
NSN 6105-01-607-4306
NSN 6240-01-225-9508
NSN 6685-01-562-3766
NSN 5915-00-846-7632
NSN 5920-00-288-5849
NSN 6220-01-575-8694
NSN 5930-01-135-0096
NSN 5999-01-615-7743
NSN 5835-01-463-2334
NSN 5990-00-827-0684
NSN 5965-01-367-6483