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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.
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Manufacturer Information:
| 176386PC6 | 10001 | NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER |
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Techincal Specification:
| MATERIAL | GLASS OPTICAL | | MATERIAL DOCUMENT AND CLASSIFICATION | JAN-G-174, TYPE 523-586, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE | | REFRACTION INDEX | 1.5230 NOMINAL | | POLISHED SURFACE | BOTH | | POLISHED PERIPHERY | NOT PROVIDED | | WIDTH | 41.000 MILLIMETERS NOMINAL | | LENGTH | 76.000 MILLIMETERS NOMINAL | | THICKNESS | 3.000 MILLIMETERS NOMINAL | | SPECIAL FEATURES | 11.0 MM 0.4331 IN. RADIUS ON ALL 4 CORNERS | | FSC APPLICATION DATA | RANGEFINDER MK 37 MOD 5 |
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