Part Number B20 4363172 having (CAGE Code 43689) and FSC 5970 Electrical Insulators and Insulating Materials in stock with ready to ship. Get an instant quote for B20 4363172 Insulation Blanket Electrical by Huntington Ingalls Incorporated. Fill the form below with your desired order quantity, targeted price and the expected order-fulfilment date. Our dedicated account manager will get back to you within 15 minutes.