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 5835-01-647-6426
NSN 6610-01-545-0766
NSN 6105-01-236-3648
NSN 5930-00-170-4127
NSN 2925-01-288-2091
NSN 5935-00-649-7792
NSN 4140-01-274-9320
NSN 7035-01-287-9817
NSN 5999-01-322-8380
NSN 5895-00-249-1079
NSN 5990-01-376-8930
NSN 5965-01-457-9410