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 6110-00-991-4517
NSN 5920-00-782-6903
NSN 6105-00-910-4499
NSN 6135-01-494-3607
NSN 6105-01-338-7761
NSN 5996-01-554-1488
NSN 5960-01-076-4708
NSN 2925-01-514-3865
NSN 7035-01-334-5855
NSN 6620-01-475-1441
NSN 5855-01-483-2774
NSN 5990-01-078-1294