Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number M40-01-0145 found under Stop Light Vehicular by Betts Industries Inc. The National Stock Number assigned to this part is 6220012916372, and the Federal Supply Class is 6220 Electric Vehicular Lights And Fixtures. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like M40-01-0145.