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 6610-01-100-3662
NSN 5855-00-951-6483
NSN 6135-01-350-5845
NSN 6240-01-620-2450
NSN 5960-01-449-1310
NSN 5950-01-537-9763
NSN 6135-00-613-1068
NSN 6220-01-470-5588
NSN 6650-01-507-7004
NSN 6110-01-228-2892
NSN 6145-00-901-5517
NSN 5835-01-281-7281