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 5960-00-866-7543
NSN 6110-00-105-0428
NSN 5905-01-081-8074
NSN 5910-01-537-9052
NSN 6150-01-243-7882
NSN 5945-00-856-9432
NSN 6685-00-833-8379
NSN 5930-01-390-1658
NSN 5935-01-041-6026
NSN 5835-01-328-6626
NSN 6105-01-233-9103
NSN 5910-01-496-9292