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 5910-00-347-5211
NSN 5855-00-436-3852
NSN 6645-01-106-6369
NSN 5965-01-205-6249
NSN 4140-00-368-4261
NSN 5999-00-901-3784
NSN
NSN 5920-00-553-5989
NSN 7035-01-534-7074
NSN 5895-00-061-1071
NSN 6130-01-057-5586
NSN 5985-01-493-3476