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National Stock Number:
1240-00-989-5947
Federal Supply Class:
1240
National Item Identification Number:
009895947
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:
| 1240009895947 | A00AM | E.C.A ETABLISSEMENT CENTRAL DESAPPROVISIONNEMENTS DES FORCES ARMEE | | 8619922 | 14001 | GRAYCO OPTICAL CORP | | 8619922 | 19200 | US ARMY ARDEC RDECOM | | 8619922 | 30181 | ILEX OPTICAL CO | | 8619922 | 91141 | DAVIDSON OPTRONICS INC. |
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Techincal Specification:
| BEVEL ANGLE IN DEG | 42.000 MINIMUM AND 48.000 MAXIMUM | | BEVEL DEPTH | 0.105 INCHES MINIMUM AND 0.125 INCHES MAXIMUM | | FSC APPLICATION DATA | PERISCOPE | | LENGTH | 4.225 INCHES MINIMUM AND 4.240 INCHES MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-174, CLASS 1, GRADE C, TYPE 517-645 MIL SPEC SINGLE MATERIAL RESPONSE LOCATION NOT OTHERWISE SPECIFIED | | MATERIAL | GLASS OPTICAL LOCATION NOT OTHERWISE SPECIFIED | | POLISHED PERIPHERY | NOT PROVIDED | | POLISHED SURFACE | BOTH | | WIDTH | 3.225 INCHES MINIMUM AND 3.240 INCHES MAXIMUM | | THICKNESS | 0.240 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
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