O-RING, NOT METAL DETECTABLE METAL DETECTABLE, NOT X-RAY DETECTABLE X-RAY DETECTABLE, SYSTEM OF MEASUREMENT INCH, CROSS SECTION SHAPE X, O-RING MATERIAL BUNA N, DUROMETER (HARDNESS) RATING MEDIUM HARD, NOMINAL INSIDE DIA. 2 1/4 IN, NOMINAL WIDTH 1/8 IN, ACTUAL INSIDE DIA. 2.234 IN, ACTUAL WIDTH 0.139 IN, DASH NUMBER 228, COLOR BLACK, DUROMETER 70A, MEETS/EXCEEDS ASTM D2000, SAE J200, NOMINAL OUTSIDE DIA. 2 1/2 IN, ACTUAL OUTSIDE DIA. 2.512 IN, TE