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 5935-00-008-8540
NSN 5998-00-111-3644
NSN 5935-00-133-0453
NSN 6220-01-010-3958
NSN 5965-01-617-1977
NSN 7035-01-296-4737
NSN 5920-00-925-6661
NSN 6110-00-161-4115
NSN 5990-01-261-2962
NSN 5920-01-521-4262
NSN 6240-00-960-8458
NSN 5998-01-290-3913