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 6110-01-067-3741
NSN 6130-01-419-3535
NSN 5998-00-080-9000
NSN 6620-00-888-3179
NSN 6620-00-936-3463
NSN 5945-01-442-1054
NSN 6685-00-990-3694
NSN 6110-01-438-9395
NSN 5910-00-786-1581
NSN 5905-00-997-1396
NSN 6650-01-113-7563
NSN 6650-00-597-7313