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 5990-01-586-8202
NSN 5985-01-215-4314
NSN 7035-00-142-9076
NSN 5915-01-468-5104
NSN 5925-00-391-6987
NSN 5975-00-284-7340
NSN 5855-00-318-7185
NSN 5930-00-849-5953
NSN 5910-01-411-5366
NSN 5925-00-128-9376
NSN 6105-00-999-3577
NSN 5935-01-179-4836