Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number T30-0511-50 found under Switch Sensitive by G E C Marconi Communications Ltd. The National Stock Number assigned to this part is 5930005046094, and the Federal Supply Class is 5930 Switches. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like T30-0511-50.