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 5985-01-228-0530
NSN 6620-00-025-1889
NSN 6320-01-441-2438
NSN 5935-00-456-2416
NSN 7035-01-577-0003
NSN 5985-01-551-7291
NSN 2925-01-545-2717
NSN 6105-00-027-9061
NSN 6130-01-188-7411
NSN 6135-01-142-6456
NSN 5945-01-120-9120
NSN 5945-01-539-4483