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 6150-01-282-4367
NSN 5910-01-501-0652
NSN 7035-01-245-7973
NSN 5925-01-139-3866
NSN 6620-01-050-2866
NSN 5930-01-269-3064
NSN 5925-01-237-2501
NSN 7035-01-005-0694
NSN 5965-01-571-5065
NSN 5985-00-615-9766
NSN 5996-00-285-3727
NSN 6145-01-525-7611