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 5930-00-872-1394
NSN 7035-01-387-8655
NSN 6645-00-451-3787
NSN 5998-01-366-7899
NSN 6105-01-263-0727
NSN 4140-01-274-1942
NSN 5999-00-110-5394
NSN 2925-01-469-8229
NSN 5920-00-594-3124
NSN 5920-00-009-3297
NSN 6685-01-174-9574
NSN 6650-00-393-0447