1240-00-025-0185 WINDOW,OPTICAL INSTRUMENT Index 5340-00-025-0187 COVER,ACCESS

National Stock Number:
1240-00-025-0186

Federal Supply Class:
1240

National Item Identification Number:
000250186

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:
181146PC1303829GENERAL SCIENTIFIC CORP
220588PC1610001NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER
G8840PC1606175BAUSCH & LOMB INC
G8840PC1674067KEUFFEL AND ESSER CO


Techincal Specification:
LENGTH1.625 INCHES NOMINAL
MATERIALPLASTIC ACRYLIC LOCATION NOT OTHERWISE SPECIFIED
POLISHED PERIPHERYNOT PROVIDED
REFRACTION INDEX1.5000 MINIMUM AND 1.5200 MAXIMUM
WIDTH1.312 INCHES NOMINAL
THICKNESS0.031 INCHES NOMINAL


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