【Dimension】3/8 inch barb to 3/8 inch NPT Male Thread 90 degree elbow hose barb fittings for a tight seal on hoses. The operating temperatures for this barb fittings range from -40 to 160 degrees F (-40 to 71 degrees C), pressure up to 300psi, can withstand burst pressures of plastic tubing 【High Quality Precision Brass】Boeray 3/8 NPT to 3/8 barb fitting is made of high quality solid CA360 brass for barstock, provide high resistance to abrasion and corrosion, ductility at high temperatures, and low magnetic permeability. Heavier weight makes the air hose barb fittings much stronger than steels 【Perfect Thread】More advanced production process ensures the clarity of the thread. NPT threads for a tighter seal than straight threads. Clear threads are better at preventing leaks. For better sealing, we recommend using Teflon tape for NPT fittings 【Specifications 】Meets specifications ASTM B584 and ASME/ANSI B16 for quality assurance. Note: NPT thread size does not actual diameter, it is only nominal pipe size. 3/8” NPT size = actual 0.675”(about 5/8”) diameter 【Wide Application】Our 3/8 barb fittings are suitable for temperature control circuits, pneumatic circuits, vacuum and fluid systems test apparatus, lubricant, coolant lines. Meet a wide range of transportation needs, such as water, gas, fuel, oil, and air. Also suitable for a variety of materials of tube Boeray 5pcs 90 Degree Elbow Brass Hose Barb Fitting -3/8" Barb to 3/8" Male NPT Adapter