Part Number 674 36 having (CAGE Code 13446) and FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings in stock with ready to ship. Get an instant quote for 674 36 Inverted Nut Tube Coupling by Perkins Engines 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.