"GAGE,CLEARANCE ENVELOPE USED TO VERIFY THAT END POINTS OF THE NO. 4 BEARING INTERNAL SCAVENGE TUBE, WHICH HAS COMPOUND ANGLES IN RELATION TO EACH OTHER, IS ACCURATELY POSITIONED; CONSISTS OF A RECTANGULAR STAINLESS STEEL BASE, LOCATOR BLOCKS, SHOULDER BOLTS, UPRIGHT SUPPORT WITH LOCATOR PINS, AND STORAGE CONTAINER; OV DIM: 14.0W X 18.5L X 5.0H"