NSN 6650-00-155-2857

Part Details | OPTICAL INSTRUMENT RETICLE

6650-00-155-2857 An item, usually made of glass, having fine wires or hairs, or etched or printed fine lines on a surface, and placed in the focal plane of an optical instrument to establish a reference point to the axis for the purpose of aiming, measuring, ranging, and the like. Excludes LENS, OPTICAL INSTRUMENT.

Alternate Parts: 278918PC3, SK111659, 6650-00-155-2857, 00-155-2857, 6650001552857, 001552857

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
66JAN 01, 196300-155-285721883 ( RETICLE, OPTICAL INSTRUMENT )
REFERENCE DRAWINGS & PICTURES

CROSSLINE

RETICLE,OPTICAL INS | 6650-00-155-2857, 001552857
Cross Reference | NSN 6650-00-155-2857
Part Number Cage Code Manufacturer
278918PC310001NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT
SK11165910001NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT
Technical Data | NSN 6650-00-155-2857
Characteristic Specifications
MATERIAL GLASS OPTICAL
STYLE DESIGNATOR CROSSLINE
GRADUATIONS/MARKINGS CROSS LINE
REFRACTION INDEX1.5109 NOMINAL
DISPERSION63.4 ANGSTROMS NOMINAL
AXIAL THICKNESS4.0 MILLIMETERS NOMINAL
DIAMETER25.0 MILLIMETERS NOMINAL
CONVEX SURFACE RADIUS61.8 MILLIMETERS
RIM FINISH GROUND
END ITEM IDENTIFICATIONPERISCOPE MK29