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 6105-00-988-2471
NSN 5950-01-030-4052
NSN 5990-01-542-4212
NSN 5905-01-399-4474
NSN 6685-01-463-7229
NSN 5915-01-225-1355
NSN 5905-01-619-4711
NSN 2925-01-224-1885
NSN 6620-00-038-5343
NSN 5990-01-471-0494
NSN 5930-00-873-7041
NSN 6150-01-078-6301