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 5925-01-324-9472
NSN 5950-00-224-1457
NSN 5998-01-213-7355
NSN 6145-00-172-6488
NSN 5996-01-626-1897
NSN 6610-01-182-1182
NSN 5930-01-142-9298
NSN 5965-01-550-4425
NSN 6220-01-137-2848
NSN 5925-01-323-6491
NSN 6620-01-415-5803
NSN 6220-01-117-2918