A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.
NSN 6620-01-431-9176
NSN 4140-00-307-2732
NSN 6150-01-507-1625
NSN 6130-00-312-5986
NSN 5915-01-260-8573
NSN 6620-00-378-3070
NSN 5895-00-501-8174
NSN 7035-01-217-3591
NSN 6130-00-840-8148
NSN 5935-01-399-1599
NSN 6150-01-414-7800
NSN 5998-00-838-2383