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 5960-01-103-0906
NSN 6220-01-394-5263
NSN 6320-01-448-6265
NSN 5960-01-058-1074
NSN 5965-01-150-1920
NSN 6620-01-659-5293
NSN 5996-01-359-9931
NSN 5905-01-451-4205
NSN 5999-01-340-0775
NSN 2925-00-654-3206
NSN 5985-01-127-3373
NSN 5935-01-043-9290