45.0 degrees by 0.047 in deep chamfer on edge of both sides
A transparent item of a predetermined size that permits unobstructed and undistorted view of a desired area. It may include a frame, have reference markings, grid lines and may be heat strengthened and/or tinted. It is generally used where safety, security, and/or the restriction of foreign matter are required, such as the visual examination of the inside of pressurized tanks, liquid sights, controlled liquid flow, and inspection of equipment enclosed in a housing. See window (as modified); scale, cathode ray tube; scale, plotting; window, metal; window, wood; and window panel, aircraft.
Classification: Pressed or molded glass articles, wired or not, for building or construction;leaded glass windows etc; formed multicellular or foam glass
NSN 5960-01-068-4003
NSN 5855-01-312-5160
NSN 6685-01-518-2953
NSN 5960-01-265-0354
NSN 5975-01-094-3287
NSN 6220-00-519-2335
NSN 5895-01-605-1464
NSN 5965-00-941-4957
NSN 4140-00-513-1089
NSN 5935-01-278-9117
NSN 5950-01-172-9891
NSN 6150-00-498-6623