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 6150-01-246-2290
NSN 5996-01-161-9408
NSN 6320-01-457-2805
NSN 6320-01-170-4068
NSN 4140-01-529-6811
NSN 5950-00-050-2597
NSN 5998-00-228-9987
NSN 6110-01-080-1193
NSN 6645-01-352-6583
NSN 6110-01-569-2600
NSN 6135-01-579-3534
NSN 6220-01-617-7535