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 5920-00-942-2674
NSN 6105-01-512-1831
NSN 5910-01-501-0652
NSN 5835-01-498-9410
NSN 6130-01-081-5679
NSN 5985-01-601-5017
NSN 6620-01-545-7396
NSN 7035-01-008-7248
NSN 2925-01-161-2325
NSN 7035-00-433-5670
NSN 5915-01-245-8157
NSN 5950-01-602-9673