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 5999-01-154-9217
NSN 6610-01-421-4044
NSN 5985-01-484-7867
NSN 6620-00-022-8056
NSN 5950-00-097-9153
NSN 6240-00-334-6766
NSN 6130-01-274-4635
NSN 6110-00-491-8502
NSN 6110-01-019-0811
NSN 5915-00-288-0071
NSN 5915-01-349-9839
NSN 5905-01-259-6988