SAE 45° Flare. Male Flare x Male NPTF. Lead free fittings available in certain sizes. Temperature range: -65°F to +250°F (-53°C to +121°C). Good vibration resistance; use long nut when great resistance is required. Typical applications: LP and natural gas, flammable liquids, instrumentation, refrigeration, power steering, hydraulic and pneumatic systems. Used with copper, brass, aluminum, and steel hydraulic tubing that can be flared.