NSN 1240-01-063-1347

Part Details | OPTICAL INSTRUMENT WINDOW

1240-01-063-1347 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.

Alternate Parts: SMD805050, SM-D-805050, 1240-01-063-1347, 01-063-1347, 1240010631347, 010631347

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
12JUL 29, 197801-063-134710908 ( WINDOW, OPTICAL INSTRUMENT )
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 1240-01-063-1347
Part Number Cage Code Manufacturer
SM-D-80505080063US ARMY COMMUNICATIONS &ELECTRONICS MATERIEL READINESS
Technical Data | NSN 1240-01-063-1347
Characteristic Specifications
MATERIAL GERMANIUM
POLISHED PERIPHERY PROVIDED
WIDTH4.725 INCHES NOMINAL
LENGTH6.000 INCHES NOMINAL
THICKNESS0.250 INCHES NOMINAL
SPECIAL FEATURESMATERIAL USED IN THE MANUFACTURE OF THIS OPTICAL PART SHALL NOT CONTAINTHORIUM,OTHER RADIOACTIVE MATERIAL OR ANY COMBINATION OF NUCLEAR MATERIALS IN EXCESS OF 0.05 PERCENT BY WEIGHT AS DEFINED BY THE TITLE 10,CODE OF FEDERAL REGULATIONS,PART 40.THE INFRARED ANTIREFLECTIVE COATING IS EXCLUDED FROM THIS RESTRICTION AND CONTAINS THORIUM APPROXIMATELY .0011 GRAMS PER SQUARE CENTIMETER OF COATED SURFACE.THORIUM IN THE ANTIREFLECTIVE COATING SHOULD NOT EXCEED THIS AMOUNT