Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 5339-090556 found under Holder Semiconductor Device by Aai Corporation. The National Stock Number assigned to this part is 5961000232381, 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 5339-090556.