NSN 6650-00-382-1923

Part Details | OPTICAL INSTRUMENT LENS

6650-00-382-1923 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: LD172592GP4, LD172592PC4, LD172592GP4, LD172592PC4, 6650-00-382-1923, 00-382-1923, 6650003821923, 003821923

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
66JAN 01, 196300-382-192321884 ( LENS, OPTICAL INSTRUMENT )
REFERENCE DRAWINGS & PICTURES

DOUBLET

Cross Reference | NSN 6650-00-382-1923
Part Number Cage Code Manufacturer
LD172592GP410001NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT
LD172592PC410001NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT
LD172592GP453711NAVAL SEA SYSTEMS COMMAND
LD172592PC453711NAVAL SEA SYSTEMS COMMAND
Technical Data | NSN 6650-00-382-1923
Characteristic Specifications
MATERIAL GLASS OPTICAL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-174, CLASS 1, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE
COMPOUND LENS STYLE DOUBLET
INDIVIDUAL LENS STYLE DOUBLE CONVEX AND MENISCUS DIVERGING
DIAMETER0.547 INCHES NOMINAL
AXIAL THICKNESS0.205 INCHES NOMINAL AND 0.039 INCHES NOMINAL
COMPOUND LENS OVERALL AXIAL THICKNESS0.244 INCHES NOMINAL
COMPOUND LENS EDGE THICKNESS0.158 INCHES NOMINAL
EQUIVALENT FOCAL LENGTH1.094 INCHES
BACK FOCAL LENGTH1.094 INCHES
FRONT FOCAL LENGTH0.933 INCHES
REFRACTION INDEX1.5170 NOMINAL AND 1.6210 NOMINAL
ABBE CONSTANTB64.300$$B36.600
FSC APPLICATION DATAFIRE CONTROL,AUX TELESCOPE,MK1