NSN 6650-00-450-1699

Part Details | OPTICAL INSTRUMENT LENS

6650-00-450-1699 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: 24857813, 248578-13, 6650-00-450-1699, 00-450-1699, 6650004501699, 004501699

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
66DEC 10, 196900-450-169921884 ( LENS, OPTICAL INSTRUMENT )
REFERENCE DRAWINGS & PICTURES

DOUBLE CONVEX

DOUBLE CONVEX

Cross Reference | NSN 6650-00-450-1699
Part Number Cage Code Manufacturer
248578-1389944KOLLSMAN, INC.
Technical Data | NSN 6650-00-450-1699
Characteristic Specifications
SINGLE LENS STYLE DOUBLE CONVEX
INDIVIDUAL LENS STYLE DOUBLE CONVEX
DIAMETER1.772 INCHES NOMINAL
AXIAL THICKNESS0.409 INCHES NOMINAL
EQUIVALENT FOCAL LENGTH6.109 INCHES
BACK FOCAL LENGTH5.330 INCHES
FRONT FOCAL LENGTH4.453 INCHES
REFRACTION INDEX1.5730 NOMINAL
ABBE CONSTANT57.500