Check the listing for details. Hammer Union 4" Fig 1003 Threaded Standard Service. Condition: New. Listed at 417.00 USD. Hammer Union 4" Fig 1003 Threaded Standard Service Cold Working Pressure (CWP) 7,500 psiTest Pressure 11,250 psiWeight 78.15 lbsNut Radius 6.00 inchesTotal Length 10.90 inchesForged Carbon Steel ConstructionFully Interchangeable with Most Major Brands of Hammer UnionsBlack Nut, Green SubsReplaceable O-Ring on Male Sub provides Primary SealingThe Fig 1003 Hammer Unions are used in air, water, oil, mud, gas service, high pressure manifold, drilling rig where alignment of piping components is a problem. They are manufactured from quality steel meeting ASTM and/or AISI standards. All Hammer Unions have a three winged lug nut and self-locking Acme threads for faster make-up and break-out using only a hammer.Buy this Hammer Union to ensure long and dependable service, even in the most extreme conditions!