NSN 1240-00-819-4713

Part Details | OPTICAL INSTRUMENT WINDOW

1240-00-819-4713 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: 1575529, 1240-00-819-4713, 00-819-4713, 1240008194713, 008194713

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
12JAN 01, 196200-819-471310908 ( WINDOW, OPTICAL INSTRUMENT )
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 1240-00-819-4713
Part Number Cage Code Manufacturer
157552910001NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT
Technical Data | NSN 1240-00-819-4713
Characteristic Specifications
REFRACTION INDEX1.5171 NOMINAL
REFLECTION REDUCING SURFACE BOTH
POLISHED PERIPHERY NOT PROVIDED
DIAMETER833.120 MILLIMETERS NOMINAL
THICKNESS56.900 MILLIMETERS NOMINAL
BEVEL ANGLE IN DEG45.000 NOMINAL
BEVEL DEPTH12.700 MILLIMETERS NOMINAL
FSC APPLICATION DATAFIRE CONTROL RANGEFINDER MK 21 MOD 2