NSN 6650-00-955-0568

Part Details | OPTICAL INSTRUMENT LENS

6650-00-955-0568 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: 6650009550568, 1240009550568, 8213367, 6650-00-955-0568, 00-955-0568, 6650009550568, 009550568

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
66JAN 01, 196200-955-056821884 ( LENS, OPTICAL INSTRUMENT )
REFERENCE DRAWINGS & PICTURES

MENISCUS CONVERGING

MENISCUS CONVERGING

Cross Reference | NSN 6650-00-955-0568
Part Number Cage Code Manufacturer
6650009550568SCY13E.C.A ETABLISSEMENTCENTRALD'APPROVISIONNEMENT DES
1240009550568SCY13E.C.A ETABLISSEMENTCENTRALD'APPROVISIONNEMENT DES
821336719200US ARMY ARDEC RDECOM
Technical Data | NSN 6650-00-955-0568
Characteristic Specifications
SINGLE LENS STYLE MENISCUS CONVERGING
INDIVIDUAL LENS STYLE MENISCUS CONVERGING
DIAMETER2.187 INCHES NOMINAL
AXIAL THICKNESS0.222 INCHES NOMINAL
ELEMENT LEFT SURFACE RADIUS21.030 MILLIMETERS
ELEMENT RIGHT SURFACE RADIUS6.504 INCHES
EQUIVALENT FOCAL LENGTH15.097 INCHES
BACK FOCAL LENGTH14.900 INCHES
FRONT FOCAL LENGTH14.678 INCHES
REFRACTION INDEX1.6200 NOMINAL
ABBE CONSTANT60.300