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 5855-01-147-4785
NSN 6135-00-240-3200
NSN 6150-01-646-3895
NSN 2925-01-198-7528
NSN 5975-01-157-0694
NSN 6220-01-566-4110
NSN 6220-01-178-0171
NSN 5945-00-960-7367
NSN 5910-01-216-6768
NSN 5915-01-203-4322
NSN 6610-00-277-7206
NSN 6130-00-044-4281