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 7035-01-227-2546
NSN 6645-00-067-7070
NSN 5960-01-160-3437
NSN 6105-00-432-9469
NSN 6620-01-240-3361
NSN 6650-00-299-9681
NSN 6685-01-013-6499
NSN 5930-01-567-4985
NSN 2925-01-556-0333
NSN 6110-01-189-4874
NSN 5930-00-038-4648
NSN 5998-01-568-0302