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 6320-01-101-5816
NSN 5999-01-345-0229
NSN 5985-00-169-1976
NSN 2925-00-156-8963
NSN 6240-01-549-7138
NSN 6320-00-894-1644
NSN 5975-00-698-9853
NSN 5990-00-867-6873
NSN 5945-01-486-4400
NSN 5975-01-353-9699
NSN 5835-01-089-7615
NSN 5975-01-035-1141