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 5965-01-605-0090
NSN 7035-01-211-5636
NSN 5945-01-322-0774
NSN 6240-01-019-1997
NSN 5920-01-141-6885
NSN 5965-01-168-8180
NSN 6150-01-521-4027
NSN 5935-01-449-3734
NSN 5920-01-230-3035
NSN 6145-01-172-5630
NSN 5985-01-552-0957
NSN 6145-01-051-6092