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 6110-01-165-4075
NSN 5920-01-167-9678
NSN 5925-01-463-9605
NSN 5910-01-660-3175
NSN 6620-01-181-1757
NSN 5945-00-505-5984
NSN 6320-01-343-5846
NSN 5996-00-875-6818
NSN 5996-01-489-1578
NSN 5998-01-357-4666
NSN 6610-00-225-9886
NSN 6110-01-081-5298