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 6610-00-912-3964
NSN 5895-00-418-4639
NSN 5835-01-608-4285
NSN 5960-01-599-9821
NSN 5960-01-278-9394
NSN 6240-00-583-3818
NSN 2925-01-534-7314
NSN 7035-01-135-7783
NSN 6130-00-050-8998
NSN 5965-01-605-4139
NSN 7035-00-946-2642
NSN 5915-01-288-0432