Silkscreen permanent black background on side 1 per marking artwork 54494-90063 rev b artwork to be registered within 0.020 in. Of noted holes
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 5915-01-478-0492
NSN 5910-00-618-0196
NSN 5905-00-043-2955
NSN 2925-01-210-6531
NSN 5965-00-802-0060
NSN 5945-01-521-2215
NSN 5910-01-353-0004
NSN 6610-00-773-3004
NSN 6150-01-270-1551
NSN 2925-00-167-6762
NSN 6135-01-190-2628
NSN 5965-01-411-4767