NSN 6650-00-902-9736

Part Details | OPTICAL INSTRUMENT LENS

6650-00-902-9736 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: 8579804, 6650-00-902-9736, 00-902-9736, 6650009029736, 009029736

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
66JAN 01, 196000-902-973621884 ( LENS, OPTICAL INSTRUMENT )
REFERENCE DRAWINGS & PICTURES

PLANO-CONCAVE

PLANO-CONCAVE

Cross Reference | NSN 6650-00-902-9736
Part Number Cage Code Manufacturer
857980419200US ARMY ARDEC RDECOM
Technical Data | NSN 6650-00-902-9736
Characteristic Specifications
MATERIAL GLASS OPTICAL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-174, CLASS 1, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE
SINGLE LENS STYLE PLANO-CONCAVE
INDIVIDUAL LENS STYLE PLANO-CONCAVE
DIAMETER1.900 INCHES NOMINAL
AXIAL THICKNESS0.100 INCHES NOMINAL
ELEMENT LEFT SURFACE RADIUS1.353 INCHES
ELEMENT RIGHT SURFACE RADIUS1.353 INCHES
EQUIVALENT FOCAL LENGTH3.995 INCHES
BACK FOCAL LENGTH2.059 INCHES
FRONT FOCAL LENGTH1.959 INCHES
REFRACTION INDEX1.6570 NOMINAL
ABBE CONSTANT2.059
FSC APPLICATION DATA1. PERISCOPE,TANK,XM48