Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number STL50A2247 found under Transducer Ultrasonic by Olympus Ndt Ne Inc. The National Stock Number assigned to this part is 6635009665244, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like STL50A2247.