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 5905-01-231-8232
NSN 5999-00-850-9934
NSN 6320-01-279-0343
NSN 5985-01-498-9476
NSN 6620-01-559-1921
NSN 5990-01-407-1474
NSN 5935-01-360-5443
NSN 5950-01-103-2423
NSN 7035-01-091-0309
NSN 5996-01-534-6088
NSN 5960-01-199-1157
NSN 5930-00-299-3428