National Item Identification Number
00-275-2711
002752711
9340-00-275-2711
9340002752711
National Stock Number
Item Name
WINDOW,OBSERVATION
Federal Supply Class
9340
Description
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.
Commercial and Government Entity Code (Supplier Data)
24446
Reference Numbers (Part Numbers)
T3637569PC12
136336PC12
Required Categories
STYLE DESIGNATOR
OVERALL DIAMETER
OVERALL THICKNESS
MATERIAL
MATERIAL DOCUME
Required Description
4 CIRCULAR
5.438 INCHES MINIMUM AND
5.516 INCHES MAXIMUM
0.167 INCHES MINIMUM