MRC:
Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification.FEAT
Special Features:
Special pin type adapter with two dowel pins on one end, compatible with the bypass valve retainer, and a hex drive on the other end to accept a standard torque wrench adapter; level-trc; size-15/16 in diameter by 3 in; weight-8 ounces; agert no 0556; 100-125 in-lb torque; original name is valve retainer adapter wrench