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NSN 1240-00-990-8983, 1240009908983
WINDOW,OPTICAL INSTRUMENT

Federal Supply Classification
FSC 1240 - Optical Sighting and Ranging Equipment
National Item Identification Number
NIIN 009908983
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 1240-00-990-8983

National Stock Number (NSN) 1240-00-990-8983, or NIIN 009908983, (window,optical instrument) was assigned January 1, 1962 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are 2 manufacturer part numbers associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.

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

This NSN is somewhat common among different platforms, belonging to 3 different weapons systems.

There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Dec 03, 2013, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2.

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 1240009908983 contains an unknown precious metal.

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, CLASS 1, GRADE C, TYPE 517-645
UNABLE TO DECODE
(MATL) UNABLE TO DECODE
MATERIAL
(MATT) GLASS, OPTICAL, MIL-G-174, CLASS 1, GRADE C, TYPE 517-645
BEVEL ANGLE IN DEG
(BMSP) 42.000 NOMINAL AND 48.000 NOMINAL
BEVEL DEPTH
(AJEF) 0.062 INCHES MINIMUM AND 0.078 INCHES MAXIMUM
LENGTH
(ABRY) 9.734 INCHES MINIMUM AND 9.750 INCHES MAXIMUM
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
REFLECTION REDUCING SURFACE
(BMSK) BOTH
THICKNESS
(ABNM) 0.240 INCHES MINIMUM AND 0.250 INCHES MAXIMUM
WIDTH
(ABGL) 3.984 INCHES MINIMUM AND 4.000 INCHES MAXIMUM
III MATERIAL
(MATT) GLASS, OPTICAL, MIL-G-174, CLASS 1, GRADE C, TYPE 517-645
III MATERIAL
(MATL) GLASS, OPTICAL, MIL-G-174, CLASS 1, GRADE C, TYPE 517-645

Manufacturer Part Numbers


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