Product Details | OPTICAL INSTRUMENT WINDOW

1240-00-759-6947 A color free item of transparent or translucent material, usually optical glass, having specific light dispersive and refractive properties. This item must have two plane-parallel surfaces and is designed for use in an optical instrument to provide a barrier to foreign matter and/or permit light transmission in or to the optical system.20212400038Optical Sighting and Ranging Equipment66500063Optical Instruments, Test Equipment, Components and Accessories

Part Alternates: 7596947, 1240-00-759-6947, 00-759-6947, 1240007596947, 007596947

Fire Control Equipment | Optical Sighting and Ranging Equipment

Supply Group (FSG) NSN Assign. NIIN
12 01 JAN 1962 00-759-6947

Cross Reference | NSN 1240-00-759-6947

Part Number Cage Code Manufacturer
7596947 19200 US ARMY ARDEC RDECOM

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Technical Data | NSN 1240-00-759-6947

Characteristic Specifications
MATERIAL GLASS, OPTICAL, MIL-G-174, GRADE C, TYPE 523-586
REFRACTION INDEX 1.5230 NOMINAL
DISPERSION 58.6 ANGSTROMS NOMINAL
POLISHED SURFACE BOTH
REFLECTION REDUCING SURFACE BOTH
POLISHED PERIPHERY NOT PROVIDED
WIDTH 0.930 INCHES NOMINAL
LENGTH 3.930 INCHES NOMINAL
THICKNESS 0.156 INCHES NOMINAL
BEVEL ANGLE IN DEG 45.000 NOMINAL
BEVEL DEPTH 0.020 INCHES NOMINAL
III END ITEM IDENTIFICATION M110A2 HOWITZER
MANUFACTURERS CODE 19200
DESIGN CONTROL REFERENCE 7596947

Restrictions/Controls & Freight Information | NSN 1240-00-759-6947

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:UPrecious metal type is unknown
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Automatic Data Processing Equipment:0Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9)
Category Code Description
NMF Description 086700 GLASS,FLAT,NOI
Less than car load rating M 85
Less than truck load rating W Rating Variable
Water commodity Code 704 unknown
Originating Activity Code XX
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity B Construction materials: Includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials.
Air Special Handling Z No special handling required.
Special Handling Code 9 unknonwn
HAZMAT FF
Type of Cargo Z No special type of cargo code applicable