The part number is 1812Y6300331GCT. This identifies a CAP CER 330PF 630V C0G/NP0 1812 capacitor with a capacitance of 330 pF and a voltage rating of 630V. It's a ceramic type, specifically classified as C0G or NP0, measuring 1812 in metric (or 4532) dimensions. The item is listed by Adibuja.