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 5985-00-632-7826
NSN 5910-01-410-7749
NSN 5930-00-899-0311
NSN 5895-01-195-2851
NSN 5998-01-129-6456
NSN 5930-01-451-9965
NSN 4140-00-112-0630
NSN 5910-00-792-3174
NSN 6240-00-312-0636
NSN 6320-01-202-8761
NSN 7035-00-205-1932
NSN 6620-01-367-4960