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 5910-01-020-0213
NSN 4140-00-262-8249
NSN 5855-01-276-5447
NSN 6130-00-808-7842
NSN 5975-01-549-7034
NSN 4140-00-111-3247
NSN 5998-00-549-6670
NSN 5950-00-985-5112
NSN 5960-01-505-2426
NSN 5925-01-485-0125
NSN 6320-00-082-5868
NSN 5910-00-421-6676