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 5950-00-125-4837
NSN 6135-00-553-7995
NSN 6650-00-269-5000
NSN 6150-01-281-2108
NSN 6620-00-286-5721
NSN 6130-01-411-5103
NSN 5855-01-457-6122
NSN 5925-00-879-5108
NSN 6645-01-139-6473
NSN 5998-00-633-5169
NSN 5915-01-032-4892
NSN 5960-01-255-5580