Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 99128237 found under Transistor by Thales Aerospace. The National Stock Number assigned to this part is 5961012528711, 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 99128237.