Rubber Grommet Style 1 Inside Dia (A) 1/2 in Outside Dia (B) 1 in Overall Thickness (C) 9/32 in Panel Thickness (D) 3/32 in Panel Hole Dia (E) 3/4 in Outside Dia (F) - Rubber Material Buna-N MS 35489 Number - AN 931 Number 930-4 Rubber Color Black Min Temp (F) -35 Degrees F Max Temp (F) 225 Degrees F Durometer 50A Elongation 300 Percent Tensile Strength (PSI) 870 psi Standards ASTM D2000 2BG506 Oil Resistant Package Quantity 25