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 6620-00-500-0041
NSN 6610-01-033-2402
NSN 5910-01-267-4752
NSN 6685-00-249-3628
NSN 6145-01-654-1811
NSN 6645-01-230-8025
NSN 6110-01-287-8988
NSN 5975-00-461-4833
NSN 5998-00-772-7043
NSN 5925-01-550-9653
NSN 6320-01-435-5991
NSN 6610-01-069-1156