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 5915-01-502-0490
NSN 6645-01-421-6909
NSN 5930-00-123-9982
NSN 6320-01-046-5228
NSN 6130-01-380-0042
NSN 6110-01-433-3479
NSN 5965-01-609-8888
NSN 5935-00-347-4201
NSN 6645-00-978-2575
NSN 6150-00-469-9383
NSN 5985-01-065-2709
NSN 5998-01-634-0604