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 6240-01-640-8139
NSN 6240-01-599-2679
NSN 5996-01-278-9294
NSN 6320-01-478-9351
NSN 5960-01-100-7381
NSN 4140-00-225-8586
NSN 5910-00-754-8686
NSN 5930-01-333-9397
NSN 5945-00-136-3845
NSN 5945-01-363-6433
NSN 5965-01-561-1504
NSN 7035-01-646-9747