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 5930-01-250-3117
NSN 5996-00-935-5070
NSN 6320-01-302-5157
NSN 5915-01-590-6232
NSN 6645-00-574-9712
NSN 2925-01-519-3221
NSN 5965-01-620-9414
NSN 5965-01-266-7968
NSN 5945-01-565-8259
NSN 5905-00-542-5785
NSN 5925-01-523-4838
NSN 2925-01-408-6205