Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SMB423394 found under Window Observation by Valcore Manufacturing Llc. The National Stock Number assigned to this part is 9330000613877, and the Federal Supply Class is 9330 Plastics Fabricated Materials. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like SMB423394.