NSN 1240-00-171-4226

Part Details | OPTICAL INSTRUMENT WINDOW

1240-00-171-4226 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: 105609PC11, 1240-00-171-4226, 00-171-4226, 1240001714226, 001714226

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
12JAN 01, 196300-171-422610908 ( WINDOW, OPTICAL INSTRUMENT )
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 1240-00-171-4226
Part Number Cage Code Manufacturer
105609PC1110001NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT
Technical Data | NSN 1240-00-171-4226
Characteristic Specifications
MATERIAL GLASS
REFRACTION INDEX1.5160 NOMINAL
DISPERSION64.5 ANGSTROMS NOMINAL
POLISHED SURFACE BOTH
REFLECTION REDUCING SURFACE BOTH
POLISHED PERIPHERY NOT PROVIDED
DIAMETER58.000 MILLIMETERS NOMINAL
THICKNESS6.000 MILLIMETERS NOMINAL