NSN 1240-00-171-4214

Part Details | OPTICAL INSTRUMENT WINDOW

1240-00-171-4214 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: 685622PC6, 1240-00-171-4214, 00-171-4214, 1240001714214, 001714214

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
12JAN 01, 196300-171-421410908 ( WINDOW, OPTICAL INSTRUMENT )
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 1240-00-171-4214
Part Number Cage Code Manufacturer
685622PC610001NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT
Technical Data | NSN 1240-00-171-4214
Characteristic Specifications
REFRACTION INDEX1.5230 NOMINAL
POLISHED SURFACE BOTH
REFLECTION REDUCING SURFACE BOTH
POLISHED PERIPHERY NOT PROVIDED
DIAMETER8.600 MILLIMETERS NOMINAL
THICKNESS2.000 MILLIMETERS NOMINAL
FSC APPLICATION DATATELESCOPE MK 89 MODS 0,1