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 5930-01-429-6774
NSN 4140-01-151-5206
NSN 5915-00-551-1789
NSN 5998-01-501-0173
NSN 5855-01-602-8518
NSN 5945-00-925-9992
NSN 4140-01-211-6474
NSN 6135-00-935-8769
NSN 5960-01-278-9394
NSN 5960-01-654-4353
NSN 6645-01-459-7788
NSN 5950-01-159-0825