Rotary Union, Fitting Material Brass, Internal Fitting Material Stainless Steel, Fitting Material Finish Nickel-Plated, Internal Fitting Material Grade 304, Fitting Type Straight, Flow Direction Single-Flow, Maximum Operating Temperature 250 Degrees F, Maximum Speed 30 RPM, Minimum Operating Temperature Not Applicable, Number of Passages 1, Overall Length 2.52 in, Pipe Size Not Applicable, Rotating Shaft Connection Type NPTF, Rotating Shaft Thread Size 1/4 in, Seal Material Nitrile Rubber