National Item Identification Number
00-317-2692
003172692
9330-00-317-2692
9330003172692
National Stock Number
Item Name
WINDOW,OBSERVATION
Federal Supply Class
9330
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)
79500
97942
Reference Numbers (Part Numbers)
55A2721REV3ITEM4
55A2721REV3ITEM4
Required Categories
STYLE DESIGNATOR
OVERALL DIAMETER
OVERALL THICKNESS
MATERIAL
MATERIAL DOCUME
Required Description
4 CIRCULAR
13.250 INCHES NOMINAL
0.250 INCHES NOMINAL
PLASTIC
MIL-P-5425 MIL