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 5996-01-598-9071
NSN 5999-01-162-4968
NSN 6320-00-456-2092
NSN 5965-01-392-1761
NSN 5996-01-593-3026
NSN 6240-00-806-4554
NSN 5910-00-170-5534
NSN 5950-00-318-9229
NSN 5895-01-465-7044
NSN 6130-01-643-3097
NSN 6645-01-550-6577
NSN 6645-01-076-4655