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NSN 1240-01-191-1670, 1240011911670
WINDOW,OPTICAL INSTRUMENT

Federal Supply Classification
FSC 1240 - Optical Sighting and Ranging Equipment
National Item Identification Number
NIIN 011911670
Codification Country
United States
Item Name Code
INC 10908
Criticality
(X) This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Hazardous Material Indicator Code
(N) There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials.
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DLMS® Summary

National Stock Number 1240-01-191-1670

National Stock Number (NSN) 1240-01-191-1670, or NIIN 011911670, (window,optical instrument) was assigned October 6, 1984 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are no manufacturer part numbers associated to this NSN.

This part number has not been procured by the US Government in over 5 years.

This NSN is assigned to Item Name Code (INC) 10908. [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.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 1240011911670 does not contain precious metals.

This NSN is associated to Schedule B 9803200000: military equipments not identified by kind. The Schedule B End Use is listed as military apparel and footwear.

This information was last updated on .


Technical Characteristics

BEVEL ANGLE IN DEG
(BMSP) 45.000 NOMINAL
CUBIC MEASURE
(AFJK) 0.4495 CUBIC INCHES
DIAMETER
(ABMZ) 1.692 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) MIL-G-174, CLASS 1, GRADE C, TYPE 517-645 MIL SPEC SINGLE MATERIAL RESPONSE
MATERIAL
(MATT) GLASS OPTICAL
POLISHED PERIPHERY
(BMSM) NOT PROVIDED
POLISHED SURFACE
(BMSG) BOTH
SPECIAL FEATURES
(FEAT) LIGHT DEVIATION NOT TO EXCEED 1.0MINUTE OF ARC; SURFACE QUALITY IS 80-50; SPHERICAL POWER NOT TO EXCEED 4 MILLIDIOPTERS; ASTIGMATISM NOT TO EXCEED 2 MILLIDIOPTERS
THICKNESS
(ABNM) 0.157 INCHES NOMINAL
III MATERIAL
(MATT) GLASS, OPTICAL, MIL-G-174, CLASS 1, GRADE C, TYPE 517-645
UNABLE TO DECODE
(MATL) UNABLE TO DECODE
III MATERIAL
(MATL) GLASS, OPTICAL, MIL-G-174, CLASS 1, GRADE C, TYPE 517-645
MATERIAL
(MATT) GLASS, OPTICAL, MIL-G-174, CLASS 1, GRADE C, TYPE 517-645
III CUBIC MEASURE
(AFJK) 0.4495 CUBIC INCHES
MATERIAL
(MATL) GLASS, OPTICAL, MIL-G-174, CLASS 1, GRADE C, TYPE 517-645

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