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 6130-01-352-3548
NSN 6105-01-551-6819
NSN 5999-01-634-0576
NSN 6130-01-258-8966
NSN 6240-01-470-2354
NSN 6685-01-089-9606
NSN 5935-00-415-6708
NSN 5935-00-767-1052
NSN 5945-01-598-5286
NSN 6110-00-237-4862
NSN 6610-00-421-9853
NSN 5910-01-229-1712