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 5975-00-427-5861
NSN 6220-00-706-2772
NSN 5950-01-486-1648
NSN 5998-01-517-7670
NSN 5960-01-227-5245
NSN 5999-00-825-6450
NSN 7035-01-525-2120
NSN 5835-01-326-8953
NSN 5930-00-392-2888
NSN 5945-00-119-3543
NSN 6620-00-266-2763
NSN 5925-01-367-2519