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 5950-01-016-9254
NSN 5895-01-470-9864
NSN 6685-01-052-8509
NSN 5835-01-561-2959
NSN 5925-01-450-9228
NSN 6105-00-052-2409
NSN 5960-00-413-8129
NSN 5945-01-477-5531
NSN 5945-01-423-9086
NSN 5925-01-293-9166
NSN 4140-01-056-4453
NSN 6150-01-483-2388