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 5999-01-142-3408
NSN 5990-01-269-2111
NSN 5998-00-081-1454
NSN 6145-01-424-5738
NSN 5910-00-103-5257
NSN 5960-00-946-7767
NSN 5965-01-107-4078
NSN 6145-00-054-8957
NSN 5999-01-643-1782
NSN 6135-01-451-2120
NSN 4140-01-144-5179
NSN 6150-00-283-8035