Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B1-4093-1 found under Seal Nonmetallic Special Shaped by Saint Gobain Performance Plastics. The National Stock Number assigned to this part is 5330005852679, and the Federal Supply Class is 5330 Packing And Gasket Materials. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like B1-4093-1.