Item is t-shaped, brass alloy 360; 1/2 h, qq-b-626; dim.Length 1.447 in.; ht 1.437 in.; stem dia.Exterior 0.250-20unc-2a; body interior cup shaped dia.0.1050/0.060. Interior center shaft through interior of body andstem 0.178/0.180in.; copper 1st plating, tin 2nd plate