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NSN 1240-00-551-1926, 1240005511926
WINDOW,OPTICAL INSTRUMENT

Federal Supply Classification
FSC 1240 - Optical Sighting and Ranging Equipment
National Item Identification Number
NIIN 005511926
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 1240-00-551-1926

National Stock Number (NSN) 1240-00-551-1926, or NIIN 005511926, (window,optical instrument) was assigned November 17, 1971 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 1240005511926 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

MATERIAL
(MATL) GLASS, OPTICAL, MIL-G-174, GRADE D, TYPE 517-645
BEVELED/POLISHED EDGE PLATING MATERIAL
(BMSL) ANY ACCEPTABLE
BEVELED/POLISHED EDGE PLATING MATERIAL
(BMSL) ANY ACCEPTABLEANY ACCEPTABLE
POLISHED SURFACE
(BMSG) BOTH
ERR DEFAULT
(BMSL) ERR DEFAULT
UNABLE TO DECODE
(MATL) UNABLE TO DECODE
III MATERIAL
(MATL) GLASS, OPTICAL, MIL-G-174, GRADE D, TYPE 517-645
SURFACE FINISH
(AGYE) FINE GROUND
REFRACTION INDEX
(BMMX) 1.5170 NOMINAL
III MATERIAL
(MATT) GLASS, OPTICAL, MIL-G-174, GRADE D, TYPE 517-645
MATERIAL
(MATT) GLASS, OPTICAL, MIL-G-174, GRADE D, TYPE 517-645
DISPERSION
(BMSH) 64.5 ANGSTROMS NOMINAL64.5 ANGSTROMS NOMINAL64.5 ANGSTROMS NOMINAL
BEVEL ANGLE IN DEG
(BMSP) 45.000 NOMINAL
BEVEL DEPTH
(AJEF) 0.020 INCHES NOMINAL0.020 INCHES NOMINAL0.020 INCHES NOMINAL
DIAMETER
(ABMZ) 2.348 INCHES NOMINAL2.348 INCHES NOMINAL2.348 INCHES NOMINAL
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) MIL-G-174, GRADE D, TYPE 517-645 MIL SPEC SINGLE MATERIAL RESPONSE
MATERIAL
(MATT) GLASS OPTICAL
POLISHED SURFACE
(BMSG) BOTHBOTHBOTH
POLISHED PERIPHERY
(BMSM) PROVIDED
REFRACTION INDEX
(BMMX) 1.5170 NOMINAL1.5170 NOMINAL1.5170 NOMINAL
THICKNESS
(ABNM) 0.125 INCHES NOMINAL0.125 INCHES NOMINAL0.125 INCHES NOMINAL
SURFACE FINISH
(AGYE) FINE GROUNDFINE GROUNDFINE GROUND

Manufacturer Part Numbers


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