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 5996-01-474-2551
NSN 6645-01-574-2818
NSN 5945-01-546-3057
NSN 5950-01-101-7024
NSN 5965-01-545-3258
NSN 5975-01-227-4967
NSN 5990-00-554-0366
NSN 6685-01-299-2250
NSN 6150-00-157-3126
NSN 5945-01-525-4556
NSN 6645-01-071-0727
NSN 6650-01-479-5386