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 6685-01-066-7472
NSN 5960-01-385-0191
NSN 6610-01-250-2811
NSN 5915-01-506-1886
NSN 6110-01-612-3507
NSN 5965-01-443-3407
NSN 6685-01-373-5167
NSN 7035-01-361-8821
NSN 6650-00-318-6033
NSN 5855-01-483-2346
NSN 5975-01-646-0874
NSN 4140-00-393-1707