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National Stock Number:
1240-00-540-6185
Federal Supply Class:
1240
National Item Identification Number:
005406185
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:
| 1240005406185 | A00AM | E.C.A ETABLISSEMENT CENTRAL DESAPPROVISIONNEMENTS DES FORCES ARMEE | | 1240005406185 | SCY13 | E.C.A ETABLISSEMENT CENTRALD'APPROVISIONNEMENT DES FORCES ARMEE | | 8229032 | 03829 | GENERAL SCIENTIFIC CORP | | 8229032 | 11934 | SEILER INSTRUMENT AND MANUFACTURING COMPANY, INCORPORATED | | 8229032 | 19200 | US ARMY ARDEC RDECOM | | A11233 | 05584 | AUTODYNE MANUFACTURING CO INC |
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Techincal Specification:
| CRITICALITY CODE JUSTIFICATION | FEAT | | DIAMETER | 1.528 INCHES MINIMUM AND 1.531 INCHES MAXIMUM | | FSC APPLICATION DATA | INFINITY SIGHT | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-174, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED | | MATERIAL | GLASS OPTICAL LOCATION NOT OTHERWISE SPECIFIED | | POLISHED PERIPHERY | NOT PROVIDED | | POLISHED SURFACE | BOTH | | SPECIAL FEATURES | LIGHT DEVIATION NOT TO EXCEED 5 MIN OF ARC AND SURFACE QUALITY 80-50 | | THICKNESS | 0.240 INCHES MINIMUM AND 0.270 INCHES MAXIMUM |
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