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 6240-01-062-2569
NSN 5965-01-472-3664
NSN 6645-00-844-7848
NSN 5998-01-010-0878
NSN 6145-00-845-0484
NSN 6145-00-122-9517
NSN 5965-01-113-7400
NSN 5925-01-485-0125
NSN 5999-00-400-3099
NSN 5835-01-654-4570
NSN 5999-01-042-2501
NSN 5915-01-222-0879