National Item Identification Number
00-517-8192
005178192
9340-00-517-8192
9340005178192
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)
19200
Reference Numbers (Part Numbers)
5178192
5178192
Required Categories
STYLE DESIGNATOR
OVERALL DIAMETER
OVERALL THICKNESS
MATERIAL
MATERIAL DOCUME
Required Description
4 CIRCULAR
0.248 INCHES NOMINAL
0.054 INCHES NOMINAL
GLASS
MIL-E-12717 MIL S