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 5975-00-541-8531
NSN 5915-01-227-6881
NSN 5990-01-546-1649
NSN 6150-00-583-9878
NSN 5950-00-082-1616
NSN 5990-01-227-6526
NSN 6645-01-521-3180
NSN 5975-00-478-2126
NSN 5895-00-198-3565
NSN 5910-01-527-4747
NSN 6145-00-269-4271
NSN 6240-01-431-9827