Nos. 83-5161, 83-5327. Argued April 10, 1984. Decided July 16, 1984. Thomas O. McCarthy (argued), McMahon, Berger, Breckenridge, Hanna, Linihan Cody, St. Louis, Mo., for petitioner. Elliott Moore, Deputy Associate Gen. Counsel, Lawrence E. Blatnik (argued) N.L.R.B., Washington, D.C., for N.L.R.B. Sidney H. Kalban (Lead) (argued), Phillips Cappiello, Ned R. Phillips, New York City, for National Maritime Union of America. Before ENGEL and MARTIN, Circuit Judges, and WEICK, Senior Circuit Judge. BOYCE