X-Ray and Metal Detectable O-Ring Yes Metal Detectable Yes X-Ray Detectable System of Measurement Inch Cross Section Shape Round O-Ring Material Buna N Durometer (Hardness) Rating Medium Hard Nominal Inside Dia 1 in Nominal Width 1/8 in Actual Inside Dia 1.296 in Actual Width 0.139 in Dash Number 219 Color Blue Durometer 70 Shore A Meets/Exceeds FDA Nominal Outside Dia 1 1/4 in Actual Outside Dia 1.57 in Temp Range -30 Degrees to 250 Degrees F FDA Approved Yes