NSN 6650-12-158-3906, 6650121583906
PRISM,OPTICAL INSTRUMENT

Federal Supply Classification: FSC 6650 - Optical Instruments, Test Equipment, Components and Accessories
National Item Identification Number: NIIN 121583906
Codification Country: Germany
Item Name Code: INC 21879
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 6650-12-158-3906

National Stock Number (NSN) 6650-12-158-3906, or NIIN 121583906, (prism,optical instrument) has an unknown assigned date. This NSN replaces 1 stock number, 6675004506961.

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) 21879. [A TRANSPARENT ITEM WITH AT LEAST TWO POLISHED PLANE SURFACES INCLINED TOWARD EACH OTHER, DESIGNED FOR USE IN OPTICAL INSTRUMENTS TO REFLECT AND/OR REFRACT A BEAM OF LIGHT. IT MAY HAVE ONE OR MORE MIRRORED SURFACES FOR GREATER REFLECTION. INCLUDES OPTICAL WEDGES USED TO DIVERT PATHS OF LIGHT BY REFRACTION, BUT TO A LESSER DEGREE. SEE ALSO BEAM SPLITTER, OPTICAL INSTRUMENT.].

This information was last updated on Aug 08, 2025.