O-RING, NOT METAL DETECTABLE METAL DETECTABLE, NOT X-RAY DETECTABLE X-RAY DETECTABLE, SYSTEM OF MEASUREMENT METRIC, CROSS SECTION SHAPE ROUND, O-RING MATERIAL BUNA N, DUROMETER (HARDNESS) RATING VERY HARD, NOMINAL INSIDE DIA. 24 MM, NOMINAL WIDTH 3 MM, ACTUAL INSIDE DIA. 24 MM, ACTUAL WIDTH 3 MM, DASH NUMBER NOT APPLICABLE, COLOR BLACK, DUROMETER 90A, MEETS/EXCEEDS ASTM D2000, SAE J200, NOMINAL OUTSIDE DIA. 30 MM, ACTUAL OUTSIDE DIA. 30 MM, TEMP.