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 5950-00-824-6176
NSN 5915-00-619-3987
NSN 5855-00-821-7512
NSN 5915-01-474-1937
NSN 6220-01-337-9507
NSN 5835-01-614-1900
NSN 7035-00-585-2113
NSN 5910-01-498-5075
NSN 5910-00-269-4755
NSN 6130-00-075-7979
NSN 6620-01-486-2555
NSN 5999-00-948-3176