Pressed in counterbored hole and oil level stenciled on glass front
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 6220-01-202-0195
NSN 6110-01-132-0163
NSN 6130-01-444-8081
NSN 6145-01-659-8709
NSN 5905-00-227-0117
NSN 6145-01-135-8243
NSN 6650-01-606-9209
NSN 4140-01-426-6629
NSN 7035-00-529-3128
NSN 6685-00-733-0824
NSN 6645-01-501-0576
NSN 5999-01-568-5824