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 6620-01-483-1138
NSN 5855-00-991-0096
NSN 5999-01-318-9070
NSN 6145-01-592-5741
NSN 5998-00-487-1994
NSN 6645-01-348-8146
NSN 6685-00-987-7078
NSN 5965-01-472-1997
NSN 5915-01-070-5915
NSN 5925-00-642-5253
NSN 5960-01-089-8155
NSN 6150-00-827-4861