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 5945-01-327-6736
NSN 5930-01-567-9982
NSN 6105-00-158-9575
NSN 5985-00-178-1143
NSN 5855-00-411-8688
NSN 5915-01-325-3277
NSN 5925-00-884-5469
NSN 6650-01-565-1471
NSN 6240-01-503-5404
NSN 5960-00-249-9623
NSN 5990-00-170-4239
NSN 5905-00-242-2737