NSN 6650-00-382-1897

Part Details | OPTICAL INSTRUMENT LENS

6650-00-382-1897 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: LD172589GP125, LD172589GP125, LD172589GP125, 3000050, LD172589GP125, 6650-00-382-1897, 00-382-1897, 6650003821897, 003821897

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
66JAN 01, 196300-382-189721884 ( LENS, OPTICAL INSTRUMENT )
REFERENCE DRAWINGS & PICTURES

DOUBLET

Cross Reference | NSN 6650-00-382-1897
Part Number Cage Code Manufacturer
LD172589GP12506175BAUSCH & LOMB INC
LD172589GP12551455GEN-EL-MEC ASSOCIATES INC
LD172589GP12527777L3 TECHNOLOGIES, INC.DBA INSIGHT TECHNOLOGY DIVISION
300005010001NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT
LD172589GP12510001NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT
Technical Data | NSN 6650-00-382-1897
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
DIAMETER1.181 INCHES NOMINAL
AXIAL THICKNESS0.354 INCHES NOMINAL AND 0.118 INCHES NOMINAL
COMPOUND LENS OVERALL AXIAL THICKNESS0.472 INCHES NOMINAL
COMPOUND LENS EDGE THICKNESS0.189 INCHES NOMINAL
ELEMENT LEFT SURFACE RADIUS-1.122 INCHES AND 1.705 INCHES
ELEMENT RIGHT SURFACE RADIUS-1.122 INCHES AND -3.228 INCHES
EQUIVALENT FOCAL LENGTH2.544 INCHES
BACK FOCAL LENGTH2.448 INCHES
FRONT FOCAL LENGTH2.323 INCHES
REFRACTION INDEX1.5170 NOMINAL AND 1.6210 NOMINAL
ABBE CONSTANTB64.300$$B36.600
FSC APPLICATION DATAFIRE CONTROL,TELESCOPE,MK 77,MOD1