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 5930-00-655-3872
NSN 5915-00-464-9106
NSN 5835-00-447-1924
NSN 5905-00-934-8857
NSN 5945-01-462-1555
NSN 5990-00-277-3763
NSN 5935-01-301-6851
NSN 5920-01-009-8121
NSN 6650-00-012-2430
NSN 6685-00-228-4815
NSN 5975-01-115-7087
NSN 6620-01-504-5756