NSN 1240-00-210-4384

Part Details | OPTICAL INSTRUMENT WINDOW

1240-00-210-4384 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: MIL1797, 1049116, 1240-00-210-4384, 00-210-4384, 1240002104384, 002104384

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
12JAN 01, 196300-210-438410908 ( WINDOW, OPTICAL INSTRUMENT )
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 1240-00-210-4384
Part Number Cage Code Manufacturer
MIL179706175BAUSCH & LOMB INC
104911610001NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT
Technical Data | NSN 1240-00-210-4384
Characteristic Specifications
REFRACTION INDEX1.5170 NOMINAL
DISPERSION64.5 ANGSTROMS NOMINAL
POLISHED SURFACE BOTH
SURFACE FINISH POLISHED
REFLECTION REDUCING SURFACE BOTH
POLISHED PERIPHERY NOT PROVIDED
DIAMETER46.6 MILLIMETERS MINIMUM AND 47.0 MILLIMETERS MAXIMUM
THICKNESS7.6 MILLIMETERS MINIMUM AND 8.0 MILLIMETERS MAXIMUM
FSC APPLICATION DATAOPTICAL SIGHTING AND RANGING EQUIPMENT