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 5/16 in Nominal Width 3/32 in Actual Inside Dia 0.362 in Actual Width 0.103 in Dash Number 110 Color Blue Durometer 70 Shore A Meets/Exceeds FDA Nominal Outside Dia 1/2 in Actual Outside Dia 0.568 in Temp Range -30 Degrees to 250 Degrees F FDA Approved Yes