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 5925-01-078-2374
NSN 5999-00-171-8858
NSN 5920-01-321-8893
NSN 5950-01-202-3856
NSN 2925-01-019-8735
NSN 6320-00-831-2227
NSN 5835-01-014-4574
NSN 6110-01-056-4964
NSN 5835-00-467-7294
NSN 4140-01-019-8539
NSN 5930-00-389-9275
NSN 5895-01-521-0980