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 5999-00-770-2280
NSN 5960-00-242-6053
NSN 6135-01-543-9686
NSN 6105-01-039-5488
NSN 6650-01-286-2714
NSN 5999-01-352-0282
NSN 7035-00-897-7567
NSN 6150-01-516-5674
NSN 6610-01-459-4870
NSN 6135-00-485-7402
NSN 5950-00-518-4645
NSN 6685-00-707-4842