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 5930-01-435-6542
NSN 6110-01-243-0446
NSN 5985-01-350-6474
NSN 6645-00-401-5563
NSN
NSN 5950-01-384-7004
NSN 6135-01-648-4875
NSN 6320-01-425-1417
NSN 6130-01-653-9448
NSN 5990-01-605-4769
NSN 5945-01-268-4492
NSN 5975-01-322-8515