Pilot operated
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 5920-01-384-3387
NSN 5950-00-921-4852
NSN 6620-01-557-6512
NSN 6105-00-583-3157
NSN 5935-01-425-2216
NSN 5996-01-313-2624
NSN 6650-01-004-6702
NSN 6645-01-418-8035
NSN 5975-01-227-5896
NSN 5925-01-341-1729
NSN 6610-00-283-8047
NSN 6105-01-430-0127