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 6240-01-383-7448
NSN 5930-01-276-1172
NSN 6220-01-661-0976
NSN 5930-01-246-2282
NSN 6135-01-151-2705
NSN 6220-01-423-2814
NSN 6145-01-512-7446
NSN 5975-01-185-2763
NSN 6320-01-407-8663
NSN 5950-01-549-5080
NSN 5910-00-553-7367
NSN 5910-01-065-0977