NSN 6650-00-518-4996

Part Details | OPTICAL INSTRUMENT LENS

6650-00-518-4996 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: 5184996, 6650-00-518-4996, 00-518-4996, 6650005184996, 005184996

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
66JAN 01, 196300-518-499621884 ( LENS, OPTICAL INSTRUMENT )
REFERENCE DRAWINGS & PICTURES

DOUBLE CONVEX

DOUBLE CONVEX

Cross Reference | NSN 6650-00-518-4996
Part Number Cage Code Manufacturer
518499619207U S ARMY TANK AUTOMOTIVE COMMANDAMSTA-IM-MM
Technical Data | NSN 6650-00-518-4996
Characteristic Specifications
SINGLE LENS STYLE DOUBLE CONVEX
INDIVIDUAL LENS STYLE DOUBLE CONVEX
DIAMETER1.467 INCHES NOMINAL
AXIAL THICKNESS0.307 INCHES NOMINAL
COMPOUND LENS OVERALL AXIAL THICKNESS0.307 INCHES NOMINAL
COMPOUND LENS EDGE THICKNESS0.111 INCHES NOMINAL
EQUIVALENT FOCAL LENGTH2.751 INCHES
BACK FOCAL LENGTH2.647 INCHES
REFRACTION INDEX1.5170 NOMINAL
ABBE CONSTANT64.500
FSC APPLICATION DATAOBSERVATION INSTRUMENT,M1