Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 9042153 REV B found under Panel Indicating Light Transmitting by Mason Electric Company. The National Stock Number assigned to this part is 6220014476804, 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 9042153 REV B.