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 6645-00-960-6594
NSN 5990-01-591-8797
NSN 5965-00-421-6459
NSN 6240-01-205-0005
NSN 6130-01-218-6461
NSN 5855-00-832-7316
NSN 6105-01-258-9231
NSN 7035-00-193-2269
NSN 5950-01-585-8855
NSN 5998-00-368-9396
NSN 5905-00-114-0711
NSN 6320-00-925-0558