Usage - true sealing surfaces
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 6105-01-447-2984
NSN 6135-00-803-3012
NSN 6145-01-497-1059
NSN 6685-01-472-7920
NSN 6150-00-867-0888
NSN 2925-01-058-1718
NSN 5990-01-642-5748
NSN 2925-01-456-6840
NSN 5910-01-174-7488
NSN 5999-00-605-1433
NSN 5895-01-530-4472
NSN 6145-01-645-7196