Made by Hydrasearch Inc P/N EF-156A2-4-64 Part Interchange Aeroquip Adapter Straight Flang To Hose P/N FC9527-6464-189 Size 4" NAVY# MIL-H-24136 MATERIAL COPPER ALLOY BOLT GUNMETAL FLANGE COPPER ALLOY NIPPLE COPPER ALLOY NUT COPPER ALLOY SOCKET MEDIA FOR WHICH DESIGNED WATER-OIL-GAS SINGLE RESPONSE MAXIMUM OPERATING PRESSURE 900.0 POUNDS PER SQUARE INCH SINGLE RESPONSE MAXIMUM OPERATING TEMP 200.0 DEG FAHRENHEIT SINGLE RESPONSE CONNECTION TYPE FLANGE 1ST END UNTHREADED INTERNAL HOSE 2ND END CONNECTION STYLE B40 SOCKET 2ND END FLANGE SHAPE ROUND WITH HOLES 1ST END Eaton Aeroquip, Inc.