Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 55UW761H (CIS found under Receivertelevision by Lg Electronics U S A Inc. The National Stock Number assigned to this part is 7730016744844, 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 55UW761H (CIS.