The end connection identified above as the second end is the valve inlet
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 6620-01-485-6459
NSN 5990-01-061-4169
NSN 5960-01-553-4557
NSN 4140-01-383-4091
NSN 5895-01-598-6123
NSN 5999-00-103-4814
NSN 5975-01-027-2157
NSN 6650-00-995-8015
NSN 5915-01-461-8233
NSN 6650-01-412-1040
NSN 5905-01-023-2965
NSN 5945-00-170-5885