NSN 6650-00-816-6525

Part Details | OPTICAL INSTRUMENT WINDOW

6650-00-816-6525 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: 1575552, 6650-00-816-6525, 00-816-6525, 6650008166525, 008166525

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
66JAN 01, 196300-816-652510908 ( WINDOW, OPTICAL INSTRUMENT )
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 6650-00-816-6525
Part Number Cage Code Manufacturer
157555210001NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT
Technical Data | NSN 6650-00-816-6525
Characteristic Specifications
REFRACTION INDEX1.5170 NOMINAL
POLISHED SURFACE BOTH
REFLECTION REDUCING SURFACE BOTH
POLISHED PERIPHERY NOT PROVIDED
DIAMETER57.500 MILLIMETERS NOMINAL
THICKNESS3.000 MILLIMETERS NOMINAL
BEVEL ANGLE IN DEG45.000 NOMINAL
BEVEL DEPTH1.500 MILLIMETERS NOMINAL
FSC APPLICATION DATAFIRE CONTROL GUNSIGHT MK 31 MOD 4