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 5915-01-492-6600
NSN 5935-01-519-5886
NSN 6240-01-219-1375
NSN 6220-00-688-7853
NSN 5920-01-524-9626
NSN 5905-01-519-8272
NSN 5998-00-580-4765
NSN 5925-01-108-8156
NSN 5960-01-030-3191
NSN 5975-01-265-6900
NSN 7035-01-271-1643
NSN 6130-00-081-9879