NSN 0R-2840-016996990-B8, REF NR 5144T17G02, QTY 208 EA, DELIVERY FOB ORIGIN. The Government does not own the data or the rights to the data needed to purchase / contract repair of this part from addi... NSN 0R-2840-016996990-B8, REF NR 5144T17G02, QTY 208 EA, DELIVERY FOB ORIGIN. The Government does not own the data or the rights to the data needed to purchase / contract repair of this part from additional sources. It has been determined to be uneconomical to buy the data or rights to the data. It is uneconomical to reverse engineer the part.