"GAGE,OUTSIDE DIAMETER - NO.4 BEARING REAR AIRSEALING RING; USED TO INSURE THE DIAMETER IS WITHIN 7.041 AND 7.043 IN; CONSISTS OF A DIAL INDICATOR, A PARALLEL TYPE BAR, POSITIONING POST, FIXED CONTACT LEG, ADJUSTABLE CONTACT LEG; DIAL INCREMENT: 0.0001; STORAGE CONTAINER"