1240-00-171-4214 WINDOW,OPTICAL INSTRUMENT Index 1240-00-171-4216 WINDOW,OPTICAL INSTRUMENT

National Stock Number:
1240-00-171-4215

Federal Supply Class:
1240

National Item Identification Number:
001714215

Description:
WINDOW,OPTICAL INSTRUMENT

Detail:
A COLOR FREE ITEM OF TRANSPARENT OR TRANSLUCENT MATERIAL, USUALLY OPTICAL GLASS, HAVING SPECIFIC LIGHT DISPERSIVE AND REFRACTIVE PROPERTIES. THIS ITEM MUST HAVE TWO PLANE-PARALLEL SURFACES AND IS DESIGNED FOR USE IN AN OPTICAL INSTRUMENT TO PROVIDE A BARRIER TO FOREIGN MATTER AND/OR PERMIT LIGHT TRANSMISSION IN OR TO THE OPTICAL SYSTEM.


Manufacturer Information:
164102PC110001NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER


Techincal Specification:
DISPERSION58.000 ANGSTROMS NOMINAL
FSC APPLICATION DATATELESCOPE MK 50
LENGTH155.750 MILLIMETERS MINIMUM AND 156.000 MILLIMETERS MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-16592, GRADE A MIL SPEC SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED
MATERIALGLASS LOCATION NOT OTHERWISE SPECIFIED
POLISHED PERIPHERYNOT PROVIDED
POLISHED SURFACEBOTH
REFRACTION INDEX1.5230 NOMINAL
WIDTH87.750 MILLIMETERS MINIMUM AND 88.000 MILLIMETERS MAXIMUM
SURFACE FINISHPOLISHED
THICKNESS11.180 MILLIMETERS MINIMUM AND 11.680 MILLIMETERS MAXIMUM


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