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 5950-00-950-6040
NSN 5920-01-543-6348
NSN 5998-01-522-9262
NSN 7035-01-068-4175
NSN 5905-01-473-6979
NSN 5950-00-822-5784
NSN 4140-00-893-2754
NSN 6130-01-419-4986
NSN 5905-00-841-4947
NSN 6150-01-194-6518
NSN 5935-01-196-0830
NSN 7035-01-323-0164