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 6130-00-192-1721
NSN 5935-01-596-9936
NSN 6620-01-383-7519
NSN 5965-01-480-3096
NSN 6645-01-366-2379
NSN 5915-00-081-3929
NSN 5998-01-428-8996
NSN 5990-01-288-7393
NSN 5930-01-524-6715
NSN 5895-01-551-1305
NSN 6105-01-558-3697
NSN 5930-01-579-3732