Overview Reviews Product Description Mar-Bal 5250-A5 Red Standoff Insulator 3/8-16 x 9/16 Deep Height 2-1/2in 3200V Glastic Part # 1872-1A 2-1/2- Diameter Shape- Octagon Aluminum Insert 5250A5-UA-YAG. Product Videos Custom Field Product Reviews Write a Review Write a Review × Mar-Bal Mar-Bal 5250-A5 Red Standoff Insulator 3/8-16 x 9/16 Deep Height 2-1/2in 3200V Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *