Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 17B8D8385-501 found under Detector Proximity by Boeing Company The. The National Stock Number assigned to this part is 5955014487160, and the Federal Supply Class is 5955 Oscillators And Piezoelectric Crystals. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 17B8D8385-501.