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 6130-01-106-1511
NSN 6620-01-346-9340
NSN 6240-01-470-7706
NSN 6135-01-426-8282
NSN 2925-00-404-6461
NSN 5975-01-003-9803
NSN 5985-01-499-6845
NSN 5985-01-433-2242
NSN 5920-01-559-7554
NSN 6650-01-555-8819
NSN 5998-01-570-1990
NSN 5930-01-041-1384