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 5930-00-189-9346
NSN 5960-01-471-4263
NSN 5945-00-294-4869
NSN 6645-01-340-0892
NSN 5945-01-197-7966
NSN 5950-01-363-2147
NSN 2925-01-295-9337
NSN 6685-01-139-4755
NSN 6130-01-579-8545
NSN 5855-01-486-9924
NSN 4140-01-615-2240
NSN 2925-01-224-1885