MRC:
						A recording of the physical,functional,and performance characteristics for an item of supply.TEXT
					 
					
						General Description:
					
					
						Front and rear surfaces to be coated with a 3 layer, high efficiency anti-reflective coating as produced by optical coating laboratory inc., or equivalent in accordance with mil-c-675 except that the following toerances apply;  0 degrees angle of incidence-for 450 to 675 millimicrons, reflectance to be 0.6 pct absolute-for 425 to 700 millimicrons, reflectance to be 0.5 pct average;  30 degrees angle of incidence-for 450 to 625 millimicrons, reflectance to be 1.0 pct absolute-for 425 to 700 millimicrons, reflectance to be 0.5 pct average:  size in in., 2.980 to 2.995 diam, thickness 0.125 porm 0.016