Part Number 40065-4 PART 50002-21 having (CAGE Code 55378) and FSC 4820 Valves Nonpowered in stock with ready to ship. Get an instant quote for 40065-4 PART 50002-21 Regulator Thermostatic Temperatu by Trac Regulators 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.