1240-00-987-3219 HEADREST,OPTICAL INSTRUMENT Index 5305-00-987-3221 SCREW,SHOULDER

National Stock Number:
6650-00-987-3220

Federal Supply Class:
6650

National Item Identification Number:
009873220

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:
821386319200US ARMY ARDEC RDECOM


Techincal Specification:
AMMUNITION IDENTIFICATION INSCRIPTION106-T119E11
ANGLE IN DEG45.0
AXIAL THICKNESS0.100 INCHES MINIMUM AND 0.120 INCHES MAXIMUM
BEVEL DEPTH AND LOCATION0.0100 INCHES MINIMUM BOTH SURFACES AND 0.0200 INCHES MAXIMUM BOTH SURFACES
DIAMETER0.6210 INCHES MINIMUM AND 0.6240 INCHES MAXIMUM
DISPERSION58.6 ANGSTROMS NOMINAL AND 46.0 ANGSTROMS NOMINAL
FSC APPLICATION DATATELESCOPE,ELBOW
GRADUATIONS/MARKINGSSTADIA-SCALE
MATERIALGLASS OPTICAL
REFRACTION INDEX1.5230 NOMINAL AND 1.5838 NOMINAL
RIM FINISHGROUND
SCALE CALIBRATION200 TO 2400 METERS,30 TO 0 TO 30 MILS,5 TO 0 TO 5 MILS
STYLE DESIGNATORVERTICALLY GRADUATED
SUPPLEMENTARY FEATURESMATERIAL OPTICAL GLASS PER MIL-G-174, GRADE C, TYPE 523-586 AND TYPE 584-460


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