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 5855-01-318-7663
NSN 7035-01-085-5955
NSN 5920-01-146-9154
NSN 5920-01-438-0557
NSN 5999-01-641-8759
NSN 6320-00-089-9425
NSN 5950-00-368-2807
NSN 5895-00-882-3618
NSN 7035-01-145-5059
NSN 5905-00-181-5851
NSN 5950-01-120-6084
NSN 6240-01-593-4728