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 4140-01-563-8482
NSN 6130-01-634-0603
NSN 5996-00-193-0585
NSN 5920-01-325-0286
NSN 5998-01-275-1824
NSN 7035-01-391-9858
NSN 7035-01-631-7017
NSN 5835-00-681-0005
NSN 5985-00-394-5888
NSN 5910-00-072-0690
NSN 4140-01-528-2531
NSN 5965-01-218-7795