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National Stock Number:
1240-01-051-5786
Federal Supply Class:
1240
National Item Identification Number:
010515786
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:
| 12266521 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM | | 6695-421 | 11871 | RECON/OPTICAL, INC. | | 6695-421 | 80294 | BOURNS INSTRUMENTS INC |
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Techincal Specification:
| DIAMETER | 4.960 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-174, GRADE B, TYPE 517-645 MIL SPEC SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED | | MATERIAL | GLASS OPTICAL LOCATION NOT OTHERWISE SPECIFIED | | POLISHED PERIPHERY | PROVIDED | | POLISHED SURFACE | BOTH | | REFLECTION REDUCING SURFACE | BOTH | | SURFACE FINISH | POLISHED | | THICKNESS | 0.250 INCHES NOMINAL |
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