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 6150-01-283-6696
NSN 5855-01-461-7726
NSN 6150-01-093-1632
NSN 5965-01-461-2850
NSN 5965-01-177-4872
NSN 5965-01-178-7853
NSN 6240-01-600-1092
NSN 6150-00-131-2869
NSN 7035-01-406-6510
NSN 4140-01-421-4045
NSN 6620-01-514-0887
NSN 6105-01-608-5217