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 5910-01-521-3684
NSN 5950-01-631-4279
NSN 6220-01-314-1339
NSN 6145-01-113-8205
NSN 2925-01-141-7563
NSN 5915-01-240-6450
NSN 6150-01-510-7862
NSN 6610-00-365-4454
NSN 5915-01-350-4485
NSN 6150-00-262-4977
NSN 5945-01-551-1714
NSN 7035-01-455-7277