Crop to exact size does not work properly. PS version 26

Thanks,  the marquee tool route works fine for what I wanted.

If you need a particular pixel size crop from the full original, without any resampling, it may be easier to use the Rectangular Marquee tool. In the options bar there's a rolldown with three options: normal, fixed size, and fixed ratio. Set it to fixed size, and enter the required pixel size. Then just move/nudge the rectangle to where you want it and Image > Crop.

Apologies if I misunderstand what you want, there's a thousand ways to crop and/or resample an image... 🙂

OK.  I was misinterpreting various internet posts on "Crop to an exact size".  I was expecting that when I put in 3000 x 2000 the crop frame would shrink to contain an area exactly 3000 x 2000 pixels of the current image, i.e. without resampling.  This is difficult to do by dragging the handles. 

Is there a way to set the crop frame to an exact size without then resampling?

I'm not seeing anything unexpected in your description. This is how it's supposed to work.

If you don't want resampling, clear the boxes. In general, explore the various parameters in the options bar to familiarize yourself with what they do.

PS.  I get the same effect on PSD files, and on Photoshop version 25.12.0.