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 VITON, DUROMETER (HARDNESS) RATING MEDIUM HARD, NOMINAL INSIDE DIA. 23 MM, NOMINAL WIDTH 2 MM, ACTUAL INSIDE DIA. 23 MM, ACTUAL WIDTH 2 MM, DASH NUMBER NOT APPLICABLE, COLOR BLACK, DUROMETER 75A, MEETS/EXCEEDS ASTM D2000, SAE J200, NOMINAL OUTSIDE DIA. 27 MM, ACTUAL OUTSIDE DIA. 27 MM, TEMP