The QT806 from Q-Tech Corporation is a Space Qualified Oscillator with Frequency 10 to 150 MHz, Spurious -70 dBc, Temperature Stability ±0.5 ppm, ±1 ppm, ±2 ppm, ±4 ppm, ±5 ppm, ±10 ppm, Supply Voltage 15 V, Output Current 50 mA. More details for QT806 can be seen below.