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 5975-00-736-3420
NSN 6105-01-566-1293
NSN 6645-01-215-0617
NSN 6320-01-567-9792
NSN 2925-01-547-4565
NSN 6220-01-126-8742
NSN 5996-01-088-7074
NSN 5835-01-370-4292
NSN 5935-00-517-8890
NSN 5905-01-193-5992
NSN 5965-01-328-7979
NSN 5996-01-472-2544