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 5895-00-155-8581
NSN 5999-01-414-0036
NSN 6105-01-367-6005
NSN 6685-01-457-6558
NSN 6130-01-344-4827
NSN 5998-01-351-1823
NSN 6685-01-293-0874
NSN 5910-00-216-4726
NSN 6320-01-029-4220
NSN 4140-01-147-4764
NSN 5990-01-254-2936
NSN 5935-00-477-6624