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 5945-01-537-0202
NSN 5990-01-658-3102
NSN 6130-00-277-7321
NSN 5960-01-387-8467
NSN 5910-01-470-6501
NSN 5950-01-303-6078
NSN 2925-01-453-1606
NSN 5990-01-463-5400
NSN 5930-01-041-2042
NSN 5920-01-533-8881
NSN 5835-01-330-8597
NSN 5998-01-400-6739