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 6105-01-494-3848
NSN 4140-01-501-6031
NSN 6220-00-111-0921
NSN 5935-01-145-4334
NSN 5990-01-173-9531
NSN 6650-01-620-8742
NSN 5998-00-993-1269
NSN 6130-00-233-3548
NSN 5975-00-073-7109
NSN 5855-01-573-2483
NSN 6145-01-444-4509
NSN 5930-01-657-4448