4920-01-454-9818 PANEL,INTERFACE DEVICE Index 1240-01-454-9820 EYEPIECE ASSEMBLY,OPTICAL INSTRU

National Stock Number:
1240-01-454-9819

Federal Supply Class:
1240

National Item Identification Number:
014549819

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:
7576874-00213160GENERAL DYNAMICS LAND SYSTEMS INC.
7576874-0027W356GENERAL DYNAMICS LAND SYSTEMS INC.


Techincal Specification:
LENGTH5.190 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-174, CLASS 1, GRADE C, TYPE 517-645 MIL SPEC SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED
MATERIALGLASS OPTICAL LOCATION NOT OTHERWISE SPECIFIED
PART NAME ASSIGNED BY CONTROLLING AGENCYWINDOW FRONT,DAYLIGHT
POLISHED PERIPHERYPROVIDED
WIDTH4.840 INCHES NOMINAL
THICKNESS0.300 INCHES NOMINAL


Click here to Register for Free 30-day Trial