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 4140-00-022-2893
NSN 6320-01-498-4954
NSN 5990-01-123-6557
NSN 5950-01-467-2426
NSN 5935-01-095-0041
NSN 7035-00-369-6346
NSN 6650-01-305-0027
NSN 5960-00-809-5059
NSN 5999-01-474-5011
NSN 5945-01-360-8778
NSN 5925-01-536-3867
NSN 5945-01-398-6873