1st and 2nd corner radii 1.890 in., remaining corners sq
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 5895-01-081-0992
NSN 6150-01-411-7097
NSN 6610-00-582-1107
NSN 5920-01-167-8908
NSN 5945-01-472-2099
NSN 6685-00-146-2308
NSN 6685-00-838-7429
NSN 5915-00-422-5222
NSN 5945-01-656-8126
NSN 5999-01-006-4616
NSN 6110-01-544-1210
NSN 5996-01-460-4396