NSN 1240-00-171-4176

Part Details | OPTICAL INSTRUMENT WINDOW

1240-00-171-4176 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: 248578PC8, 1240-00-171-4176, 00-171-4176, 1240001714176, 001714176

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
12JAN 01, 196300-171-417610908 ( WINDOW, OPTICAL INSTRUMENT )
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 1240-00-171-4176
Part Number Cage Code Manufacturer
248578PC810001NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT
Technical Data | NSN 1240-00-171-4176
Characteristic Specifications
REFRACTION INDEX1.5171 NOMINAL
POLISHED SURFACE BOTH
REFLECTION REDUCING SURFACE BOTH
POLISHED PERIPHERY NOT PROVIDED
DIAMETER47.000 MILLIMETERS NOMINAL
THICKNESS8.000 MILLIMETERS NOMINAL
FSC APPLICATION DATATELESCOPE MK 100 MOD 0