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 6685-01-634-0611
NSN 5998-01-406-6536
NSN 6650-01-155-8182
NSN 5999-01-326-4614
NSN 5950-01-225-0528
NSN 6110-01-529-9674
NSN 5950-00-394-1546
NSN 6620-01-336-2663
NSN 6240-01-062-7922
NSN 5835-00-269-2232
NSN 5985-01-186-6646
NSN 6685-01-386-5129