This is one Lot (Qty. 1) of New (unused old stock) Vectron International 6377 Series Oven Controlled Crystal Oscillator (OCXO) or TCXO at 9.60MHz. Part Number: 6377-9.60MHz  in 1.5"x1.5"x0.5" Through Hole Package.

This part is old design and I can not find data sheet. There are 5 pins on the device, 3 pins are ground. 1 pin on the 3-pin side is output, and 1 pin on the 2-pin side is DC power input. I connect it to 5V DC, and it draw 17mA with output 9.6MHz sinewave at 1.6Vp-p (see picture).

Since I don't have data sheet, I can not sure it is OCXO or TCXO. Based on the package style, it look like OCXO, but only drawing 17mA at 5V, it seems like a TCXO.