This is a firm fixed price requirements type aquisition that will be awarded under the authority of FAR 6.302-1 & 10 USC 2304(c)(1), Only One Responsible Source and No Other Supplies or Services Will ... This is a firm fixed price requirements type aquisition that will be awarded under the authority of FAR 6.302-1 & 10 USC 2304(c)(1), Only One Responsible Source and No Other Supplies or Services Will Satisfy Agency Requirements for F-35 Radar Sustainment Support to Northrop Grumman due to proprietary data for six months.