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 6645-01-449-5457
NSN 6220-00-342-1086
NSN 5855-01-482-8290
NSN 6130-01-386-3858
NSN 5905-01-654-0408
NSN 5855-01-604-4161
NSN 6105-01-013-9252
NSN 5975-01-369-6746
NSN 5965-01-492-5695
NSN 6105-00-283-9914
NSN 7035-01-413-6697
NSN 6320-01-585-8468