Collins 179J-7 ADF Antenna Coupler P/N 522-2931-004 from $237.80 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 removedManufacturer Part Number: 522-2931-004 Qty available: 4 Tweet