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 6135-00-240-3200
NSN 2925-01-444-2061
NSN 5998-00-899-0995
NSN 5855-01-471-3162
NSN 5915-01-235-9338
NSN 6105-01-126-2771
NSN 6135-01-324-4692
NSN 5920-01-304-9062
NSN 5950-00-021-8078
NSN 5935-01-215-8513
NSN 6240-00-903-4660
NSN 6130-00-031-3512