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 5998-01-139-4164
NSN 7035-01-014-3808
NSN 5975-00-324-2070
NSN 5965-01-423-5159
NSN 5925-01-593-1220
NSN 6320-01-519-8767
NSN 5935-01-008-8215
NSN 5965-01-104-5102
NSN 5998-00-546-2775
NSN 5925-01-185-0031
NSN 6110-01-442-4144
NSN 6620-00-221-6639