264-DC
Lot Of 4 Bridgeport 264-DC EMT Zinc Die Cast Compression Coupling, 1-1/2 Inch
A nice touch is that BHC Parts lists exact dimensions on their product pages.
Bridgeport 264-DC EMT Zinc Die Cast Compression Coupling, 1-1/2 Inch
The CPC2G Ceramic Pourable Compound works well for potting electrical components in enclosures.