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 5910-00-171-3058
NSN 6130-01-430-0261
NSN 6610-01-606-2144
NSN 5935-01-651-0132
NSN 6610-01-179-0116
NSN 4140-01-028-0629
NSN 5945-01-041-4956
NSN 5996-01-515-5770
NSN 6320-01-232-4664
NSN 5945-00-909-4274
NSN 5925-01-487-6456
NSN 5960-00-185-5041