NSN 6650-00-157-4140

Part Details | OPTICAL INSTRUMENT LENS

6650-00-157-4140 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: G8110PC16, 203034, 799639PC1, 203034PC16, 6650-00-157-4140, 00-157-4140, 6650001574140, 001574140

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
66JAN 01, 196300-157-414021884 ( LENS, OPTICAL INSTRUMENT )
REFERENCE DRAWINGS & PICTURES

DOUBLET

LENS,OPTICAL INSTRU | 6650-00-157-4140, 001574140
Cross Reference | NSN 6650-00-157-4140
Part Number Cage Code Manufacturer
G8110PC1674067KEUFFEL AND ESSER CO
20303410001NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT
799639PC110001NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT
203034PC1610001NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT
Technical Data | NSN 6650-00-157-4140
Characteristic Specifications
COMPOUND LENS STYLE DOUBLET
INDIVIDUAL LENS STYLE DOUBLE CONVEX AND MENISCUS DIVERGING
DIAMETER27.0 MILLIMETERS NOMINAL
AXIAL THICKNESS8.5 MILLIMETERS NOMINAL AND 2.0 MILLIMETERS NOMINAL
COMPOUND LENS OVERALL AXIAL THICKNESS10.5 MILLIMETERS NOMINAL
ELEMENT LEFT SURFACE RADIUS25.6 MILLIMETERS AND -23.9 MILLIMETERS
ELEMENT RIGHT SURFACE RADIUS23.9 MILLIMETERS AND 345.5 MILLIMETERS
EQUIVALENT FOCAL LENGTH4.715 CENTIMETERS
BACK FOCAL LENGTH4.033 CENTIMETERS
REFRACTION INDEX1.6490 NOMINAL AND 1.5725 NOMINAL
ABBE CONSTANTB33.800$$B57.400
END ITEM IDENTIFICATIONRANGEFINDER MK42