This matrix table tells you the inter-compatibility of the ThinkPad Chiclet ‘Precision’ keyboard between the new generation of Thinkpad Classic.
If you have a X230 keyboard, according to the above table you can also use it in the X230, X230t, T430, T430s, T430, W530, L430, and L530, but it is not compatible with the X1, X1 Carbon, T430u and X131e.