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:
Heat treated to 160 ksi. Min. Tensile strength rc 36/40; exposed surfaces aluminum coated with supplementary chromate treatment; inside dia. 1.9485to 1.9490 in.; six 0.377 to 0.380 in. Dia. Holes on flange end; internal 34 tooth spline, fillet root side fit, minor dia. 2.063 to 2.068 in., major dia. 2.254 in. Max., mating p/n k874212
