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 5999-00-006-6040
NSN 5920-01-381-2597
NSN 7035-00-153-3826
NSN 6220-00-100-6276
NSN 6135-01-321-5659
NSN 6105-01-401-5361
NSN 6320-01-129-9656
NSN 5990-00-513-5328
NSN 5930-01-498-6871
NSN 5960-01-167-8796
NSN 5960-01-124-8336
NSN 6220-00-963-1517