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 5996-00-543-1566
NSN 5950-01-345-4185
NSN 5935-00-787-7468
NSN 6650-01-322-1963
NSN 5855-01-658-3670
NSN 2925-00-724-9252
NSN 6105-00-721-2433
NSN 5996-01-196-2042
NSN 5965-01-339-5321
NSN 5835-01-174-7700
NSN 5965-01-258-5662
NSN 5965-00-493-6008