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 6220-01-254-7921
NSN 6610-01-100-3662
NSN 5990-01-347-6080
NSN 5975-01-110-8425
NSN 5920-00-757-1900
NSN 6620-00-069-5764
NSN 6105-01-140-1768
NSN 5998-01-394-5249
NSN 5925-01-353-2766
NSN 6650-01-437-8852
NSN 5910-00-247-8626
NSN 5915-01-364-7272