Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SA2731 found under Semiconductor Devices Unitized by Lenz Electric Inc. The National Stock Number assigned to this part is 5961000219057, 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 SA2731.