SEN0618 IR adjustable Proximity Sensor Drawing and IP rating

Hi there,

We just bought the IR Gravity sensor (actually a 50NK) for test, and eventually later use in a product.

Was wondering if there was any official drawing of the housing available for that sensor ( especially including tolerances for the holes and their spacing) . 

Also wondering , just for reference, if the product has any IP specification for dust and water. 

Thanks