"GAGE,FLUSH PIN-NO 5 BEARING SEAL SUPPORT,PISTON RING GROOVE USED TO ASSURE 0.005 IN CLEAN-UP DIMENSION DOES NOT EXCEED ALLOWABLE 1.695 IN PRIOR TO NICKEL PLATE RESTORATION OF SEAL SUPPORT P/N 4027961; MEASURES DEPTH OF LOWER GROOVE FACE FROM AN AFT DATUM SURFACE AND GROOVE OUTER DIAMETER; CONSISTS OF SOLID RECTANGULAR STEEL BLOCK W/ A FREE MOVING GAGE PIN WITH AN UPPER AND LOWER STEP CAPTURED IN A HOLE IN THE BLOCK; STORAGE CONTAINER"