Grade b/toolroom/two ledge; flatness is 0.00034; thickness is 4 in; net weight is 365 lbs
A rectangular or square precision tool having a flat working surface(s) of specific flatness. It is used as a datum plane in connection with various layout, inspection, and calibration operations. It may also be used as a lapping plate, but is not grooved. See also block, lapping; plate, duplex, surface and lapping; and plate, lapping.
NSN 5935-01-590-6117
NSN 5935-01-565-3089
NSN 5935-01-155-3121
NSN 5990-01-581-5103
NSN 6650-00-273-8732
NSN 6220-01-088-7646
NSN 5920-00-357-0260
NSN 5930-00-456-6698
NSN 5975-01-252-0960
NSN 5915-01-293-7088
NSN 5975-00-378-8407
NSN 5975-00-270-6759