Part Number BYLB 1217 having (CAGE Code 05624) and FSC 4820 Valves Nonpowered in stock with ready to ship. Get an instant quote for BYLB 1217 Regulator Thermostatic Temperatu by Ge Aviation Systems Llc. 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.