Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AB90032900-18 found under Lamp Incandescent by Transicoil Llc. The National Stock Number assigned to this part is 6240014821022, and the Federal Supply Class is 6240 Electric Lamps. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like AB90032900-18.