Rockwell Safe Flight Signal Summing Unit P/N C-50906 HE409-5003-0003 from $105.63 Qty. Add to Cart This item is a recurring or deferred purchase. By continuing, I agree to the cancellation policy and authorize you to charge my payment method at the prices, frequency and dates listed on this page until my order is fulfilled or I cancel, if permitted. Condition: UsedCondition Description: as removed Alt P/N HE409-5003-0003Manufacturer Part Number: C-50906 Qty available: 1 Tweet