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 5930-00-767-1088
NSN 7035-00-830-1235
NSN 6620-01-360-4725
NSN 5945-00-230-6445
NSN 6135-01-515-4260
NSN 5925-00-761-6812
NSN 5975-00-250-7358
NSN 6110-01-574-4274
NSN 5935-01-190-0009
NSN 5950-01-385-3316
NSN 5855-01-357-7907
NSN 5999-01-437-8843