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 5998-00-596-8869
NSN 5835-00-166-9413
NSN 4140-01-106-8952
NSN 5855-01-550-5219
NSN 6685-01-244-0263
NSN 5975-00-755-3703
NSN 5920-01-549-4070
NSN 5905-01-534-5964
NSN 5996-01-141-5435
NSN 6110-00-905-6148
NSN 6620-00-542-0529
NSN 5935-00-199-6675