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 7035-01-287-5094
NSN 6320-01-233-5798
NSN 5999-01-188-8316
NSN 5915-01-546-7335
NSN 5975-00-333-9866
NSN 6685-01-169-4345
NSN 5975-01-618-3382
NSN 6130-01-384-4391
NSN 6685-01-429-8298
NSN 5950-01-082-6989
NSN 6130-01-639-8149
NSN 6220-01-388-6430