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 5855-00-281-3843
NSN 6130-01-634-0603
NSN 6150-01-051-6489
NSN 5975-01-623-4797
NSN 5999-01-368-7096
NSN 6610-00-347-7490
NSN 6650-00-518-5194
NSN 6610-00-045-8132
NSN 6105-01-189-9972
NSN 6110-00-482-3372
NSN 6150-01-264-3954
NSN 5835-01-310-8979