Is the nikon D5300 weather sealed?

If so how weather sealed is it. If it is not weather sealed how much water can it take without breaking.

Added (1). Also it may seem a stupid question but is the 18 - 140 mm lens FX or DX.

No, it is not weather sealed.

The 18-140mm is DX.

If you want weather-sealing at that price, your only option is the Pentax K-30.

As a bonus, it has a pentaprism viewfinder, meters with MF lenses and autofocuses whether the AF-fit lens is motorised or not.

No, it isn't. If in doubt, don't.

If you want weather sealed, you are going to want to go with a D7000 or D7100.