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 6240-01-406-5345
NSN 6105-01-466-4222
NSN 6145-01-224-8341
NSN 6610-01-083-7579
NSN 5945-01-159-4902
NSN 6220-01-631-4422
NSN 6240-01-565-3840
NSN 4140-01-500-9644
NSN 5975-00-670-5213
NSN 6130-00-059-4642
NSN 5998-01-194-8609
NSN 5990-00-503-4724