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 5945-01-180-2742
NSN 5975-01-103-4835
NSN 5975-01-381-7274
NSN 5998-01-049-7875
NSN 6645-00-814-1706
NSN 6130-01-398-0440
NSN 5945-01-228-0638
NSN 6320-00-456-0836
NSN 6620-01-478-7549
NSN 6105-01-211-5451
NSN 6240-01-194-2206
NSN 5920-01-343-6838