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 5905-01-549-1824
NSN 5996-01-246-2472
NSN 4140-01-534-3429
NSN 5965-01-245-1552
NSN 7035-01-164-6835
NSN 5925-01-471-7086
NSN 5855-00-127-5559
NSN 6320-00-701-0437
NSN 5998-01-146-4367
NSN 5960-00-886-3582
NSN 6135-01-132-6310
NSN 6645-00-530-1096