Brass Fittings 90 Degree Barstock Street Elbow 1/4" NPT Male Pipe to 1/4" NPT Female Pipe 1/4 NPT Elbow Forged Brass Pipe Fittings. Adapts 1/4" NPT Male to 1/4" NPT Female Thread pipe fittings at a 90-degree angle. The operating temperatures for this pipe fittings range from -53 to 121 degrees C (-65 to 250 degrees F), withstands pressures up to 1200psi