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 7035-01-097-5054
NSN 6650-01-355-8109
NSN 5835-01-535-0948
NSN 5945-01-535-0951
NSN 5985-00-513-3420
NSN 5999-00-912-7555
NSN 2925-01-157-9204
NSN 5960-01-385-9361
NSN 6645-00-936-5988
NSN 5950-01-501-4277
NSN 6645-01-334-0782
NSN 6145-01-509-2482