DIAMETER: 0.750″+/-.010″
THICKNESS: 0.039″+/-.004″
PARALLELISM: 3 ARC MINUTES MAXIMUM.
FLATNESS: 10 WAVES/INCH MAXIMUM, 2 FACES.
EDGE BEVEL: NOT SPECIFIED.
SURFACE QUALITY: 60-40 SCRATCH-DIG PER MIL-O-13830
2 FACES.
MATERIAL TYPE/QUALITY: SAPPHIRE, OPTICAL GRADE.
CRYSTALLOGRAPHIC ORIENTATION: RANDOM
COATING: ITO HEATER, 5 WATTS/SQ” @ 12VAC OR VDC
AND Cr/Ni/Au BUSS BAR PER PRINT
APPROXIMATE RESISTANCE: 780 OHMS