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 6645-00-153-3834
NSN 5925-01-340-5538
NSN 5925-01-417-9203
NSN 5996-01-155-3022
NSN 6610-00-727-9918
NSN 5990-01-287-9447
NSN 6220-01-377-4957
NSN 4140-00-740-2153
NSN 5998-00-104-8286
NSN 5950-01-076-0416
NSN 5895-01-079-6541
NSN 5835-01-555-8963