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 6610-00-469-8534
NSN 5975-01-333-7503
NSN 5855-00-832-9341
NSN 6135-01-493-2912
NSN 5999-01-392-6313
NSN 5935-01-649-4806
NSN 6130-01-634-0603
NSN 5895-01-258-6711
NSN 5945-01-092-4164
NSN 6105-01-057-1815
NSN 5950-01-425-2716
NSN 5905-00-202-0111