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 5855-00-951-6483
NSN 6105-01-006-7069
NSN 6650-01-485-8060
NSN 6240-01-163-2813
NSN 4140-00-242-3574
NSN 6320-00-483-0451
NSN 6130-01-382-5896
NSN 5910-01-174-8754
NSN 5930-01-112-8915
NSN 6220-01-436-3850
NSN 5996-00-013-9302
NSN 5930-00-395-7053