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 5915-00-584-3512
NSN 5855-01-392-3734
NSN 5930-01-127-9438
NSN 6240-00-553-8891
NSN 5985-01-581-0804
NSN 7035-00-521-6423
NSN 5965-01-445-9403
NSN 5945-01-481-9061
NSN 6610-01-173-6323
NSN 6130-00-394-3421
NSN 5910-01-115-4000
NSN 5925-01-303-3495