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 5910-01-065-0977
NSN 5915-01-393-2708
NSN 5998-01-465-3775
NSN 5935-01-257-8034
NSN 6150-01-253-2484
NSN 5990-01-411-5930
NSN 6110-01-084-6013
NSN 5920-01-627-5753
NSN 6150-01-306-7126
NSN 5985-01-580-7791
NSN 6685-01-583-0543
NSN 4140-00-415-6513