Vacuum Fitting Adapter, Application Not Applicable, Fitting Side A Connection Type NW, Fitting Side B Connection Type NW, Fitting Material Stainless Steel, Material Grade 304, Fitting Side A Tube Outer Diameter 1 in, Fitting Side B Tube Outer Diameter 3/4 in, Maximum Operating Temperature 320 Degrees F, Trade No. 16, 25, Specific Fitting Shape Straight Adapter, Flange Outside Diameter 1.563 in, Flange Thickness 1/8 in, Number of Bolt Holes 0, Vacuum Rating 10-7 torr @ 72 Degrees F. This item has been restricted from sale in the following state (s): []