1240-00-026-8108 WINDOW,OPTICAL INSTRUMENT Index 1240-00-026-8111 NUT

National Stock Number:
6650-00-026-8109

Federal Supply Class:
6650

National Item Identification Number:
000268109

Description:
RETICLE,OPTICAL INSTRUMENT

Detail:
AN ITEM, USUALLY MADE OF GLASS, HAVING FINE WIRES OR HAIRS, OR ETCHED OR PRINTED FINE LINES ON A SURFACE, AND PLACED IN THE FOCAL PLANE OF AN OPTICAL INSTRUMENT TO ESTABLISH A REFERENCE POINT TO THE AXIS FOR THE PURPOSE OF AIMING, MEASURING, RANGING, AND THE LIKE. EXCLUDES LENS, OPTICAL INSTRUMENT.


Manufacturer Information:
217455PC510001NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER
323211PC910001NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER


Techincal Specification:
ANGLE IN DEG45.0
AXIAL THICKNESS0.2756 INCHES NOMINAL
CONVEX SURFACE RADIUS1.9701 INCHES
DIAMETER1.5355 INCHES NOMINAL
DISPERSION64.3 ANGSTROMS NOMINAL
FSC APPLICATION DATATELESCOPES MK 67,68 INTEGRAL WITH FIRE CONTROL
GRADUATIONS/MARKINGSELEVATION TYPE
MATERIALGLASS OPTICAL
REFRACTION INDEX1.5771 NOMINAL
RIM FINISHGROUND
SPECIAL FEATURES0.0197 IN. BEVEL DEPTH
STYLE DESIGNATORVERTICALLY GRADUATED
SUPPLEMENTARY FEATURESMATERIAL OPTICAL GLASS PER JAN-G-174, GRADE C, TYPE 523-586 AND 584-460


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