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 5910-01-102-0906
NSN 6610-01-471-8130
NSN 6610-00-526-9440
NSN 5905-01-422-3229
NSN 6650-01-502-6761
NSN 5999-00-601-0999
NSN 6105-00-143-7283
NSN 6610-01-447-2503
NSN 5930-00-179-5187
NSN 5935-01-120-7010
NSN 2925-01-596-9448
NSN 6645-01-428-3576