Flange Fitting; Type Socket Weld End; Applicable Standard ASME B16.5/SA105; Nominal Pipe Size 1"; Flange Outside Diameter 4.25"; Thickness 0.5"; End Connection Socket Weld; Material Carbon Steel; Material Specification ASTM A105; Process Forged; Pressure Rating Class 150, 285 PSI; Temperature Rating -20 to 1000 Deg F; Bolt Hole Diameter 5/8"; Number of Bolt 4; Bore Size 1.05"; Packaging Quantity 12