Flare Tube Fitting Nut; Item Flare Tube Fitting Nut; Type Short, Hex; Tube Size 5/16"; Width Across Flat 5/8"; TPI 20; Overall Length 0.88"; Thread Size 1/2"-20 TPI; Material Brass; Finish Rough; Pressure Rating 600 to 3000 PSI; Temperature Rating -65 to 250 Deg F; Application Commercial, Residential, Fuel, Oil, Air, Liquid Petroleum, Natural Gas; Packaging Quantity 10; Weight 0.4 Lb