Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MA191J-21003 found under Lamp Incandescent by Am General Llc. The National Stock Number assigned to this part is 6240009247526, 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 MA191J-21003.