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 6320-00-593-0379
NSN 6135-01-010-0891
NSN 5935-01-658-3778
NSN 6130-01-371-2417
NSN 5930-01-370-0266
NSN 6150-00-601-6683
NSN 6650-00-834-9062
NSN 6320-01-514-6141
NSN 5985-01-524-0525
NSN 6135-01-168-2944
NSN 5965-00-081-9412
NSN 5930-01-413-7884