No other part numbers with same form, fit, and function found.
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 5950-01-457-5810
NSN 5975-00-521-2140
NSN 5930-01-634-0659
NSN 5990-00-362-1453
NSN 6130-01-359-1712
NSN 6145-00-493-4073
NSN 5960-01-346-3377
NSN 2925-01-062-2660
NSN 6240-00-209-1883
NSN 5910-01-012-1610
NSN 6650-01-083-9706
NSN 6240-01-598-3969