Features
Includes quality control certificate of conformance.
Specifications
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Diameter:
4.000 inches
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Federal Supply Class (fsc):
Optical instruments, test equipment, components and accessories
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National Stock Number (nsn):
6650-00-219-3379
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Special Features:
Reflection surface flat to 0.25 wavelength; 3 magnetic feet on back, parallel to mirror surface to 3 sec