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 5965-00-791-0964
NSN 2925-01-534-7314
NSN 6130-01-113-6715
NSN 6130-01-442-6491
NSN 4140-01-259-2951
NSN 6145-01-242-0857
NSN 6145-01-624-4474
NSN 6150-00-498-2688
NSN 5990-00-226-7894
NSN 2925-01-322-9780
NSN 5855-00-688-9954
NSN 6620-01-223-2441