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 5945-00-700-4812
NSN 5905-01-628-0111
NSN 5945-00-274-2398
NSN 2925-00-091-6745
NSN 6105-00-839-8336
NSN 5950-00-647-3622
NSN 5996-00-879-4654
NSN 5945-01-551-5149
NSN 5975-00-186-8884
NSN 7035-01-088-6415
NSN 5965-01-063-7894
NSN 6220-00-913-8486