Bushing, material Monel, standard and grade ASTM A 494 M-35-1, length 16 in, diameters: 1.- External 4 in, internal 2 in- 10 pieces 2.- External 6 in, internal 3 in - 6 pieces 3.- External 6 in, internal 4 in - 5 pieces 4.- External 8 in, internal 6 in - 5 pieces 5.- External 9 in, internal 7 in - 5 pieces