Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number R21819 found under Stop Light Vehicular by Rogers Brothers Corporation. The National Stock Number assigned to this part is 6220001133166, 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 R21819.