The OX-174 from Vectron International is a OCXO with Frequency 5 to 20 MHz, Supply Voltage 5 to 12 V, Phase Noise -135 dBc/Hz, Phase Noise 10 kHz -175 dBc/Hz, Frequency Stability ±10 ppb. Tags: Surface Mount, Low G-Sensitivity. More details for OX-174 can be seen below.