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 2925-01-528-7333
NSN 5999-00-233-6366
NSN 5920-01-565-8377
NSN 6610-01-603-0703
NSN 5895-01-406-0215
NSN 5990-01-568-5565
NSN 5965-00-518-0958
NSN 5920-00-468-3074
NSN 5935-00-497-9203
NSN 2925-01-091-4734
NSN 6150-01-046-2138
NSN 5945-01-380-3876