Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PD4959 found under Semiconductor Device Set by Pd And E Electronics Llc. The National Stock Number assigned to this part is 5961000574959, 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 PD4959.