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 5835-01-565-3411
NSN 5965-01-142-1807
NSN 7035-01-123-8723
NSN 5935-01-531-6536
NSN 6650-00-185-8344
NSN 5998-00-596-7177
NSN 6150-00-246-6673
NSN 6135-01-079-7852
NSN 5998-01-194-0099
NSN 6685-00-377-9044
NSN 6320-01-006-6138
NSN 5895-00-617-6340