Part Number BK 1786 UGS having (CAGE Code 42280) and FSC 4820 Valves Nonpowered in stock with ready to ship. Get an instant quote for BK 1786 UGS Valve Holder by Nash Engineering Company Inc The. 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.