NSN 6650-00-157-4139

Part Details | OPTICAL INSTRUMENT LENS

6650-00-157-4139 An unmounted, transparent, color free lens which may be treated with a low reflection coating to increase light transmission. Includes single and compound elements. For items having two plane parallel surfaces, see WINDOW, OPTICAL INSTRUMENT. Excludes RETICLE, OPTICAL INSTRUMENT.

Alternate Parts: G8110PC15, 203034PC15, 799640PC1, 6650-00-157-4139, 00-157-4139, 6650001574139, 001574139

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
66JAN 01, 196300-157-413921884 ( LENS, OPTICAL INSTRUMENT )
REFERENCE DRAWINGS & PICTURES

DIALYTE

LENS,OPTICAL INSTRU | 6650-00-157-4139, 001574139
Cross Reference | NSN 6650-00-157-4139
Part Number Cage Code Manufacturer
G8110PC1574067KEUFFEL AND ESSER CO
203034PC1510001NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT
799640PC110001NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT
Technical Data | NSN 6650-00-157-4139
Characteristic Specifications
COMPOUND LENS STYLE DIALYTE
INDIVIDUAL LENS STYLE MENISCUS DIVERGING AND DOUBLE CONVEX
DIAMETER29.0 MILLIMETERS NOMINAL
AXIAL THICKNESS2.0 MILLIMETERS NOMINAL AND 9.0 MILLIMETERS NOMINAL
COMPOUND LENS OVERALL AXIAL THICKNESS11.0 MILLIMETERS NOMINAL
ELEMENT LEFT SURFACE RADIUS8565.0 MILLIMETERS AND 28.2 MILLIMETERS
ELEMENT RIGHT SURFACE RADIUS-28.2 MILLIMETERS AND 28.7 MILLIMETERS
EQUIVALENT FOCAL LENGTH7.250 CENTIMETERS
BACK FOCAL LENGTH7.456 CENTIMETERS
REFRACTION INDEX1.6490 NOMINAL AND 1.5185 NOMINAL
ABBE CONSTANTB33.800$$B59.600
END ITEM IDENTIFICATIONRANGEFINDER MK42