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 6130-00-445-1041
NSN 6685-01-521-3127
NSN 5985-00-147-5606
NSN 5915-00-425-8973
NSN 6240-01-371-4263
NSN 6130-01-215-2971
NSN 5996-01-351-1558
NSN 6110-01-178-2848
NSN 5935-01-231-2096
NSN 6150-00-181-1711
NSN 6645-01-386-6311
NSN 6240-00-987-5464