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 5945-01-439-5110
NSN 5930-00-636-8888
NSN 5855-00-361-0167
NSN 5915-00-123-2183
NSN 5996-01-024-9976
NSN 5935-01-153-2465
NSN 5965-00-099-0698
NSN 5960-01-252-8821
NSN 5990-01-065-0492
NSN 5920-00-943-4022
NSN 6130-01-152-6718
NSN 7035-00-553-6951