Four 0.144 in. Dia. Mtg. Holes spaced 90 deg. Apart on 2.672 in.Radius
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: Articles of plastics & articles of other materials of heading 3901 to 3914, nesoi
NSN 6645-01-576-6733
NSN 6620-01-132-1776
NSN 5975-01-599-0843
NSN 6240-01-401-5340
NSN 6135-01-566-1034
NSN 5990-00-226-1152
NSN 6645-00-451-6462
NSN 5965-00-445-1843
NSN 6610-00-944-0346
NSN 5915-00-056-0859
NSN 5835-00-601-1402
NSN 6135-01-648-4875