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 6110-01-332-2513
NSN 6685-01-208-2132
NSN 6130-01-437-5403
NSN 6610-00-886-3652
NSN 5965-00-255-3889
NSN 5905-00-186-0913
NSN 5965-00-144-2543
NSN 7035-00-135-4758
NSN 5945-00-228-5838
NSN 5925-00-870-3582
NSN 5998-00-273-3980
NSN 6130-01-500-9845