Parker's 45° flare fittings are economical for a metal-to-metal seal that are designed for high pressure service and have exceptional resistance to mechanical pull out. The positive nature of the connection with the flare on the tube clamped between the nut and the Body makes for extreme dependability and Safety. Flare fittings are appropriate alternatives for solder Type joints where an open flame is either not desired or impractical. Fittings are available in forgings for refrigeration applications. Fittings meet functional requirements of SAE J512 and J513.