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 6135-01-591-1250
NSN 6320-01-106-4414
NSN 6130-01-441-7903
NSN 5910-00-127-6206
NSN 5945-00-950-5667
NSN 5855-01-076-5202
NSN 5998-01-441-7849
NSN 5998-01-203-5879
NSN 6645-01-322-8897
NSN 5965-01-056-7225
NSN 5835-00-289-9080
NSN 6620-01-276-9825