NSN 9340-01-444-1698

Part Details | OBSERVATION WINDOW

9340-01-444-1698 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.

Alternate Parts: 8477K42, 9340-01-444-1698, 01-444-1698, 9340014441698, 014441698

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
93APR 30, 199701-444-169816880 ( WINDOW, OBSERVATION )
REFERENCE DRAWINGS & PICTURES

CIRCULAR

Cross Reference | NSN 9340-01-444-1698
Part Number Cage Code Manufacturer
8477K4239428MCMASTER-CARR SUPPLY COMPANY
Technical Data | NSN 9340-01-444-1698
Characteristic Specifications
STYLE DESIGNATOR CIRCULAR
OVERALL DIAMETER2.000 INCHES NOMINAL
OVERALL THICKNESS0.375 INCHES NOMINAL
MATERIAL GLASS BOROSILICATE
SURFACE FINISH FIRE FINISH
MATERIAL TRANSPARENCY CLEAR
EDGE TYPE FLAT FINISH
PLY QUANTITY1
TEMP AT MAXIMUM OPERATING PRESSURE446.0 DEG FAHRENHEIT
ENVIRONMENTAL PROTECTION HIGH TEMPERATURE RESISTANT