The 5745173-1 is a 25-position shielded D-sub Backshell, made of die-cast. The Amplimite backshell has nickel-plated bright shield and used with jacketed cable. The backshell has RFI/EMI shield allows cable to be fully prepared and terminated to the connector. 4-40 Thread size Accessory Type Two Piece Backshell Number of Positions 25 Cable Type Round Cable Exit 180° Shielding Shielded Material Metal, Zinc Alloy Plating Nickel over Copper Hardware Assembly Hardware, Strain Relief Features Mating Screws 4-40 Applications Industrial