5325-00-171-4206 LOCK SPRING,TURNLOCK FASTENER Index 1240-00-171-4210 WINDOW,OPTICAL INSTRUMENT

National Stock Number:
1240-00-171-4209

Federal Supply Class:
1240

National Item Identification Number:
001714209

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:
176386PC610001NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER


Techincal Specification:
FSC APPLICATION DATARANGEFINDER MK 37 MOD 5
LENGTH76.000 MILLIMETERS NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONJAN-G-174, TYPE 523-586, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED
MATERIALGLASS OPTICAL LOCATION NOT OTHERWISE SPECIFIED
POLISHED SURFACEBOTH
POLISHED PERIPHERYNOT PROVIDED
REFRACTION INDEX1.5230 NOMINAL
SPECIAL FEATURES11.0 MM 0.4331 IN. RADIUS ON ALL 4 CORNERS
THICKNESS3.000 MILLIMETERS NOMINAL
WIDTH41.000 MILLIMETERS NOMINAL


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