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 6110-01-596-1715
NSN 6150-00-691-1705
NSN 6150-01-069-4662
NSN 5996-01-216-0702
NSN 6650-01-230-1501
NSN 6130-01-472-1932
NSN 5965-01-126-4178
NSN 6105-01-439-7592
NSN 6130-01-350-3585
NSN 6105-00-148-8279
NSN 5915-00-902-0944
NSN 5975-00-770-5634