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 6110-01-030-1264
NSN 6220-01-268-7553
NSN 5925-01-290-6976
NSN 5999-00-230-5083
NSN 7035-01-485-2134
NSN 6620-00-130-0815
NSN 6145-01-442-1656
NSN 4140-00-166-2228
NSN 5835-01-103-1384
NSN 5855-01-540-7413
NSN 5960-01-195-2166
NSN 6110-00-228-4308