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 5985-01-580-1476
NSN 5935-01-483-0916
NSN 4140-01-254-2739
NSN 2925-00-115-5857
NSN 5905-01-024-6558
NSN 6240-01-282-0983
NSN 5905-01-370-4392
NSN 5935-01-078-4815
NSN 6145-00-188-3657
NSN 6135-00-809-2148
NSN 5920-00-148-4622
NSN 5835-01-267-3388