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 5915-00-175-4028
NSN 6220-01-211-8419
NSN 5950-01-624-1509
NSN 6620-00-758-5233
NSN 5996-01-145-6557
NSN 6650-01-044-7746
NSN 6135-01-219-8612
NSN 5930-00-978-9008
NSN 5935-00-389-7160
NSN 5960-01-583-4737
NSN 6130-01-059-5738
NSN 6150-01-258-4036