Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SM-B-148515 found under Window Observation by Quadriel Inc. The National Stock Number assigned to this part is 9340002645429, and the Federal Supply Class is 9340 Glass Fabricated Materials. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like SM-B-148515.