This is a JIC double nipple with UNF threads. Stainless steel 316 (1.4571) fittings have excellent corrosion resistance (better than stainless steel 304). The maximum operating pressure is 310 bar (4355.5 psi).
Specifications
Thread : UNF 7/16-20
Dash Size : 4
Connection type : Outer thread flare (UNF)
Material : Stainless steel
Max pressure at 20 °C (bar) : 310
Quality of material : Stainless steel (1.4571)
Material connection 1 : Stainless steel
Material connection 2 : Stainless steel
Material quality connection 1 : Stainless steel (1.4571)
Material quality connection 2 : Stainless steel (1.4571)
Shape : Straight

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