5310-00-641-2306 WASHER,FLAT Index 5330-00-641-2311 SEAL,PLAIN ENCASED

National Stock Number:
1240-00-641-2310

Federal Supply Class:
1240

National Item Identification Number:
006412310

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:
279495PC1110001NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER


Techincal Specification:
BEVEL ANGLE IN DEG45.000 NOMINAL
BEVEL DEPTH1.000 MILLIMETERS NOMINAL
FSC APPLICATION DATAPERISCOPE MK 20 NOD 6
LENGTH129.920 MILLIMETERS NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONJAN-G-174, TYPE 523-586, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE
MATERIALGLASS OPTICAL
SPECIAL FEATURES12.20 MM (0.4802 IN.)RADIUS,4 CORNERS
POLISHED PERIPHERYNOT PROVIDED
POLISHED SURFACEBOTH
REFLECTION REDUCING SURFACEBOTH
REFRACTION INDEX1.5240 NOMINAL
WIDTH83.950 MILLIMETERS NOMINAL
THICKNESS8.000 MILLIMETERS NOMINAL


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