Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number DMS 78019B found under Transistor by Dla Aviation. The National Stock Number assigned to this part is 5961001528005, and the Federal Supply Class is 5961 Semiconductor Devices And Associated Hardware. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like DMS 78019B.