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 5975-00-944-1499
NSN 6610-01-262-5968
NSN 6105-01-391-3513
NSN 5910-01-250-8388
NSN 6320-01-454-1965
NSN 6105-00-866-9926
NSN 6320-01-382-9676
NSN 4140-01-185-1159
NSN 5895-01-016-0552
NSN 5945-00-921-4267
NSN 4140-01-225-3637
NSN 4140-01-244-4694