Rubber Grommet Style 1 Inside Dia (A) 1/2 in Outside Dia (B) 1 1/16 in Overall Thickness (C) 1/2 in Panel Thickness (D) 1/4 in Panel Hole Dia (E) 13/16 in Outside Dia (F) - Rubber Material Buna-N MS 35489 Number 101 AN 931 Number C8-13 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 50