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 5999-01-004-5470
NSN 2925-00-536-4574
NSN 6685-01-576-9843
NSN 5835-00-949-3018
NSN 5855-01-371-9776
NSN 6105-00-019-1181
NSN 5925-00-952-8641
NSN 6110-01-222-2176
NSN 5999-01-179-8592
NSN 6135-01-613-9509
NSN 5996-01-336-9541
NSN 6240-01-195-1750