Third end is bulkhead type ms33657
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.
Classification: Check valves of steel
NSN 5975-01-569-0893
NSN 6150-00-665-9926
NSN 5985-01-442-8742
NSN 5935-01-419-2517
NSN 6105-01-308-8426
NSN 6220-00-816-8131
NSN 5990-01-128-3758
NSN 5998-01-380-1851
NSN 5945-01-575-0755
NSN 5996-01-444-3915
NSN 5910-01-340-5659
NSN 5945-01-418-2185