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 6145-01-479-5377
NSN 6150-01-271-0442
NSN 5905-01-277-0732
NSN 6645-00-084-3859
NSN 6220-01-413-8387
NSN 5835-01-250-2939
NSN 5835-00-155-1379
NSN 5998-01-043-4270
NSN 4140-01-296-7950
NSN 5975-01-390-7893
NSN 6240-01-144-1334
NSN 6320-00-823-2015