Attributes . Hose assemblies are furnished with the following fittings: 1/4" ID ? 1/4" X 1/4"M NPT, 5/16" ID ? 5/16" X 1/4"M NPT, 3/8" ID ? 3/8" X 1/4"M NPT, 1/2" ID ? 1/2" X 1/2"M NPT, 5/8" ID ? 5/8" X 3/4"M NPT, 3/4" ID ? 3/4" X 3/4"M NPT, 1" ID ? 1" X 1"M NPT,. . Names