Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HC0168138B006 ITEM 4 found under Relay Electromagnetic by Ssd Drives Inc Formerly Eurotherm. The National Stock Number assigned to this part is 5945014637332, and the Federal Supply Class is 5945 Relays And Solenoids. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like HC0168138B006 ITEM 4.