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 6685-01-202-4050
NSN 5998-01-649-3464
NSN 6320-01-088-1109
NSN 2925-00-017-9807
NSN 5999-01-634-0576
NSN 6240-01-451-1409
NSN 6135-01-164-3561
NSN 5915-00-534-5391
NSN 6105-01-434-8770
NSN 5965-01-414-6414
NSN 5835-00-498-8189
NSN 4140-00-036-2851