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 5925-01-107-8793
NSN 5950-01-483-4000
NSN 6150-00-656-5202
NSN 5855-00-135-9064
NSN 6645-01-381-2050
NSN 5990-01-013-8464
NSN 6110-00-789-5594
NSN 6620-00-455-9668
NSN 5915-01-052-6110
NSN 6240-00-881-9624
NSN 4140-01-029-5989
NSN 5960-01-061-9166