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 5960-00-266-6741
NSN 6145-01-494-3798
NSN 6320-00-284-1524
NSN 5996-01-263-1969
NSN 5975-00-469-1443
NSN 5835-00-986-5985
NSN 6150-00-176-9112
NSN 5998-01-113-0841
NSN 5990-01-565-2226
NSN 5855-01-306-5655
NSN 6320-01-173-7950
NSN 5925-01-361-1775