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 6105-00-553-8943
NSN 5925-01-510-8584
NSN 6150-00-016-3785
NSN 5985-00-946-0101
NSN 5855-01-205-7030
NSN 6685-01-112-5746
NSN 5930-01-345-6312
NSN 5935-01-445-6725
NSN 6650-01-298-4138
NSN 6105-01-509-2872
NSN 5915-01-237-2480
NSN 4140-01-107-2246