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 5998-00-062-0024
NSN 5999-00-061-1373
NSN 6620-00-111-0401
NSN 5935-00-345-7992
NSN 2925-01-266-5229
NSN 6220-00-383-9402
NSN 7035-00-476-7178
NSN 6105-01-155-6962
NSN 6105-01-384-7386
NSN 5998-01-521-6311
NSN 6130-01-565-3142
NSN 6610-01-365-0971