NSN 6K-8145-145553290-HT, TDP VER 004, QTY 5 EA, DELIVERY FOB ORIGIN. The Government physically does not have in its possession sufficient, accurate, or legible data to purchase this part/contract rep... NSN 6K-8145-145553290-HT, TDP VER 004, QTY 5 EA, DELIVERY FOB ORIGIN. The Government physically does not have in its possession sufficient, accurate, or legible data to purchase this part/contract repair from other than the current source(s).