Special Features:

Steel, spec data, mil, mil-s-6050, type designator, a/a; cadmium-plated finish; dim. Data, 1-1/16 in. Lg over-all, 3/8 in. Across hex flats, 7/16 in. Lg hex, 5/8 in. From valve end to hex shoulder; threaded type hose connector, thd data, 10-32, nf, rh, class 2b thd or class 2 fit, 5/16 in. Lg; valve seat end data, 0.190 in. Largest od of taper, 0.095 in. Lg taper, 0.220 in. Lg excl thd portion, 0.173 in. From center of inlet hole to valve end, 0.070 in. Diameter inlet hole, external thd data, 1/4-28, unf or nf, rh, class 3a thd or class 3 fit, 11/32 in. Lg; drain hole data, 0.0781 in. Dia, 0.922 in. Lg

Properties:

A metallic, threaded, screw-shaped item used in hydraulic brake cylinders, hydraulic power units, missile launching hydraulic systems, and the like, for the purpose of providing a means of releasing air form and/or flushing a hydraulic system. It may be furnished with or without a dust cap. Excludes spring loaded or automatic type air pressure relief valves, and bolt, fluid passage.