Form from plastic molding material, nylon, class fiber filled, l-p-395, type ii, grade b, polymer 6/6, class 1; 1.192 in. Outside dia; 3.396 in. O /a long; 3 places, 0.805 r; a 0.187 in. Diameter ref hole is permissible to facilitate mfr; spacer, packing forward f/apam