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 5965-01-598-6015
NSN 4140-01-381-7286
NSN 5910-01-466-4740
NSN 5960-01-300-3506
NSN 5935-01-455-1188
NSN 6320-01-476-7702
NSN 5935-01-120-2292
NSN 6610-01-650-6364
NSN 2925-01-346-9522
NSN 6105-00-827-0616
NSN 5975-00-366-5639
NSN 5905-01-585-7165