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 6130-01-461-9310
NSN 6150-01-104-4323
NSN 5965-01-136-4781
NSN 6135-01-309-8414
NSN 5975-01-197-7673
NSN 6135-01-450-3781
NSN 6620-01-012-2852
NSN 5920-01-223-8588
NSN 6320-01-506-9439
NSN 5915-00-172-3084
NSN 6645-00-711-5381
NSN 5915-01-641-1266