Part Number B-1-77108 having (CAGE Code 24374) and FSC 4820 Valves Nonpowered in stock with ready to ship. Get an instant quote for B-1-77108 Valve Vent And Drain by Bechtel Technical Services 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.