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 4140-01-465-6476
NSN 5950-01-048-0141
NSN 6685-01-559-6235
NSN 6150-01-439-5394
NSN 5996-01-383-7018
NSN 5998-01-152-2819
NSN 5999-00-014-3396
NSN 7035-00-185-8683
NSN 6220-00-998-0552
NSN 5935-01-073-7407
NSN 5945-01-447-2622
NSN 5925-00-569-7405