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 copper having a pressure rating of 850 kpa or over
NSN 6620-01-606-4138
NSN 5925-01-399-2313
NSN 6105-01-533-3411
NSN 5915-01-580-0308
NSN 5990-01-400-3299
NSN 5945-01-619-7340
NSN 6645-00-177-0826
NSN 5996-00-862-5514
NSN 5920-01-575-3510
NSN 6645-01-595-3945
NSN 5999-01-344-6378
NSN 6110-01-289-4689