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 5925-00-871-6476
NSN 5965-00-468-3071
NSN 5965-01-258-5662
NSN 6320-01-233-5798
NSN 5990-01-132-4156
NSN 5935-01-362-0116
NSN 5999-01-471-4184
NSN 6135-01-385-7276
NSN 5915-01-542-8722
NSN 5920-00-195-5461
NSN 5996-01-188-0252
NSN 5925-01-383-1463