The part number is CAP CER 270PF 50V C0G/NP0 0402. This corresponds to a 270 picofarad ceramic capacitor with a C0G or NP0 dielectric material and a 0402 case size, rated for 50 volts of DC voltage. It has a tolerance of ±5% and is available in metric package 1005 (0402 in imperial measurements).