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 6620-01-534-0898
NSN 5835-01-202-9673
NSN 5915-00-359-7776
NSN 6130-00-880-6000
NSN 5945-01-428-9943
NSN 5975-00-237-4297
NSN 5960-01-245-6088
NSN 5985-00-476-4489
NSN 6145-01-076-3699
NSN 7035-00-991-6877
NSN 6105-01-229-7384
NSN 5925-01-169-2626