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 6620-01-645-8717
NSN 5999-01-381-2457
NSN 5915-01-477-6689
NSN 5998-01-442-5057
NSN 5835-00-554-0399
NSN 6650-00-056-1581
NSN 5895-01-309-9297
NSN 6645-01-395-4129
NSN 6685-01-133-9921
NSN 5835-00-622-3334
NSN 6105-00-960-0072
NSN 5990-01-250-4198