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 5925-01-482-3642
NSN 6240-01-399-0343
NSN 5920-01-501-5961
NSN 5960-00-515-7366
NSN 5998-01-111-8681
NSN 5985-01-412-1375
NSN 6150-01-442-7046
NSN 6610-01-337-4640
NSN 7035-00-631-3782
NSN 5965-01-095-9767
NSN 5915-00-795-2811
NSN 6610-00-288-5655