Detecto #013 Buna Fda-Buz-Xr X-Ray O-Ring, Dash 013, Buna N, 0.07 In.
7/16 in, Nominal Width 1/16 in, Actual Inside Dia. 9/16 in, Actual Outside Dia. 0.566 in, Temp. Range -30 Degrees to 250 Degrees F, FDA Approved FDA Compliant. #013 Buna FDA-Buz-XR. & Recepticles. Electrical Outlets.