Part Number 4125 having (CAGE Code 71002) and FSC 5970 Electrical Insulators and Insulating Materials in stock with ready to ship. Get an instant quote for 4125 Insulator Feedthru by Birnbach Co Inc. 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.