Part Number VTR31-4A2 having (CAGE Code 06858) and FSC 5990 Synchros and Resolvers in stock with ready to ship. Get an instant quote for VTR31-4A2 Transmitter Synchro by Sieh Inc Dba United Plumbing. 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.