Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 8140600-01 found under Standard Calibration Ultrasonic by Bright Lights Usa Inc. The National Stock Number assigned to this part is 6635011247399, 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 8140600-01.