Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number S1660-63015-2 found under Mast by Rotair Industries Inc. The National Stock Number assigned to this part is 5985008877059, and the Federal Supply Class is 5985 Antennas Waveguides And Related Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like S1660-63015-2.