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 6135-01-542-0659
NSN 5895-01-046-2001
NSN 5930-01-325-2536
NSN 6145-01-510-6511
NSN 5835-01-294-9691
NSN 6135-00-284-1406
NSN 5895-00-035-8813
NSN 6240-01-575-4089
NSN 4140-01-498-4330
NSN 6650-00-539-7298
NSN 6645-01-521-4383
NSN 5985-01-599-3201