Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SFB50A2331 found under Transducer Ultrasonic by Olympus Ndt Ne Inc. The National Stock Number assigned to this part is 6635009665252, 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 SFB50A2331.