Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number EWA-107 found under Windshield Wiper As by Data Instruments Inc. The National Stock Number assigned to this part is 1680013844341, and the Federal Supply Class is 1680 Miscellaneous Aircraft Accessories And Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like EWA-107.