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 5910-00-401-8635
NSN 6650-00-144-4555
NSN 5905-01-152-1874
NSN 6135-01-388-2761
NSN 6130-01-245-0591
NSN 4140-01-177-1445
NSN 6620-01-532-9023
NSN 6240-00-827-5794
NSN 7035-00-421-8710
NSN 5910-00-205-2430
NSN 6135-01-086-0809
NSN 6135-01-653-1437