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 5960-00-971-8432
NSN 5950-00-842-5043
NSN 5999-01-117-3256
NSN 5935-00-460-5080
NSN 5998-01-422-5518
NSN 5975-01-433-8939
NSN 5996-00-928-2839
NSN 6320-01-335-8336
NSN 6650-01-207-0039
NSN 6150-00-518-2743
NSN 6645-00-966-7794
NSN 6150-00-365-1711