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 5985-01-067-3271
NSN 5895-01-054-4104
NSN 5990-01-521-7890
NSN 6240-01-457-7978
NSN 5920-00-427-7267
NSN 6645-01-157-9080
NSN 6150-01-224-5868
NSN 5965-01-258-5662
NSN 6610-01-334-8883
NSN 5990-01-443-2931
NSN 5985-00-772-6676
NSN 6645-01-519-3007