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 5950-00-308-0948
NSN 5910-00-519-8418
NSN 7035-01-327-0793
NSN 5915-00-569-1434
NSN 5915-01-014-6309
NSN 5975-00-075-5191
NSN 5895-00-471-1632
NSN 5935-01-558-1926
NSN 5930-00-498-3221
NSN 6105-01-465-6505
NSN 5996-01-619-6176
NSN 2925-01-386-7392