28--VALVE,BLEED,TURBINE, IN REPAIR/MODIFICATION OF

NSN 7R-2840-015425347-SX, TDP VER 003, REF NR AUTHORIZED DISTRIBUTOR FOR 34163, QTY 3 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). The subject item requires Government source approval prior to contract award, as the item is flight critical and/or the technical data available has not been determined adequate to support acquis…