Replaceable dome assembly

An optical dome mounting system, comprising:

• a chassis;
• an optical dome;
• a plurality of alignment bushings, each having a head portion and a chassis engagement portion;
• and
• a dome mount having a first side for engaging with the optical dome and an opposing side for engaging with the chassis and having a plurality of recesses therein, each recess for floatingly receiving the head portion of a corresponding one of the alignment bushings, wherein the head portion of each alignment bushing has an outer circumference that is less than an inner circumference of its corresponding recess such that the difference in size between the outer circumference of the head portion and the inner circumference of the recess allows for play therebetween;
• wherein the dome mount is bonded to at least one of the chassis and the optical dome with a low outgassing adhesive;
• and
• wherein mechanical registration of the alignment bushings with the recesses of the dome mount allows for positioning of a replacement optical dome of an optical system such that co-boresight of multiple beam paths through the optical dome is automatically maintained, the multiple beam paths associated with one or more devices configured to at least one of transmit and receive an optical signal through the optical dome.