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 6645-00-462-7072
NSN 7035-01-322-0221
NSN 5915-00-726-6218
NSN 5998-01-289-4119
NSN 5855-01-360-6650
NSN 5855-01-634-0259
NSN 6145-01-409-1034
NSN 2925-00-261-5800
NSN 6220-01-312-3083
NSN 5999-01-104-6374
NSN 5855-00-944-0949
NSN 5999-01-053-2539