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 5985-00-439-8242
NSN 6130-01-634-0603
NSN 6105-00-683-5459
NSN 6620-00-923-8470
NSN 4140-01-492-5923
NSN 5999-00-106-9884
NSN 6105-01-232-1094
NSN 6145-00-174-4862
NSN 6645-01-101-2877
NSN 6610-01-420-3780
NSN 6130-00-596-9565
NSN 5960-01-324-6464