Matl steel per qq-s-763; 2.04 in. Min and 2.06 in. Max long; body stepped 0.306 in. Min and 0.316 in. Max od and 0.432 in. Min and 0.434 in. Max od; first end 0.4375-20unf-3a; flange 6 sided 0.684 in. Min and 0.692 in. Max across; second end 0.375-24unf-3a