4920-00-468-1410 FIXTURE,ENGINE MAINTENANCE,AIRCR Index 5120-00-468-1416 BASE,INSTALLATION TOOL

National Stock Number:
9340-00-468-1415

Federal Supply Class:
9340

National Item Identification Number:
004681415

Description:
WINDOW,OBSERVATION

Detail:
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.


Manufacturer Information:
8846453964KAYDON CUSTOM FILTRATION CORPORATION
MILG285781349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
WW8118760SH1PCF0R6824446GENERAL ELECTRIC COMPANY
WW8118760SH2PCF0R6824446GENERAL ELECTRIC COMPANY


Techincal Specification:
OVERALL DIAMETER2.125 INCHES NOMINAL
OVERALL THICKNESS0.250 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONDD-G-451 FED SPEC SINGLE MATERIAL RESPONSE
MATERIAL TRANSPARENCYCLEAR
MATERIALGLASS
SPECIAL MARKINGSHEAT TREATED
STYLE DESIGNATORCIRCULAR
SURFACE FINISHPOLISHED


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