Product Details | OBSERVATION WINDOW

9340-00-256-5201 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.20293300029Plastics Fabricated Materials93400026Glass Fabricated Materials

Part Alternates: 5331, 9340-00-256-5201, 00-256-5201, 9340002565201, 002565201

Nonmetallic Fabricated Materials | Glass Fabricated Materials

Supply Group (FSG) NSN Assign. NIIN
93 24 MAR 1971 00-256-5201

Drawings & Photos | NSN 9340-00-256-5201


Cross Reference | NSN 9340-00-256-5201

Part Number Cage Code Manufacturer
5331 14674 CORNING GLASS WORKS

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Technical Data | NSN 9340-00-256-5201

Characteristic Specifications
STYLE DESIGNATOR 1 SQUARE CORNERS
OVERALL LENGTH 4.000 INCHES NOMINAL
OVERALL WIDTH 5.000 INCHES NOMINAL
OVERALL THICKNESS 0.125 INCHES NOMINAL
MATERIAL GLASS
MATERIAL DOCUMENT AND CLASSIFICATION DD-G-541,TYPE 1,CLASS A FED SPEC SINGLE MATERIAL RESPONSE
MATERIAL TRANSPARENCY CLEAR
EDGE TYPE FLAT FINISH
PLY QUANTITY 1
TEMP AT MAXIMUM OPERATING PRESSURE NOT RATED
MAXIMUM OPERATING PRESSURE NOT RATED
HARDNESS RATING NOT RATED
MINIMUM TENSILE STRENGTH NOT RATED
ENVIRONMENTAL PROTECTION DRY HEAT RESISTANT
RADIATION PROTECTION RATING NOT RATED

Restrictions/Controls & Freight Information | NSN 9340-00-256-5201

Category Code Description
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Precious Metals Indicator Code:AItem does not contain precious metal
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
No Freight Information