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 5930-00-303-6925
NSN 6320-01-428-9205
NSN 5965-01-503-0699
NSN 6105-00-053-8638
NSN 5895-01-047-0939
NSN 5930-01-459-1963
NSN 5895-00-762-9757
NSN 6650-00-724-8258
NSN 6650-01-169-5247
NSN 7035-01-196-3445
NSN 6610-01-421-4396
NSN 5985-01-187-6858