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 4140-01-482-0163
NSN 5985-01-347-9519
NSN 5960-00-246-4623
NSN 5975-00-899-1995
NSN 5920-00-021-3697
NSN 5999-00-650-8657
NSN 5965-00-088-1722
NSN 5975-01-275-8341
NSN 6145-01-195-3802
NSN 5960-01-531-9108
NSN 6645-00-658-7838
NSN 5950-01-634-0677