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 5990-00-170-4239
NSN 5960-01-158-9166
NSN 6135-01-460-8830
NSN 2925-00-021-9580
NSN 6135-00-240-3200
NSN 6645-01-136-9825
NSN 4140-01-587-4764
NSN 2925-01-337-2508
NSN 6320-01-275-2741
NSN 5975-00-111-1226
NSN 6110-01-310-8476
NSN 5996-01-358-8671