National Stock Number
6650-01-297-8003
National Stock Number (NSN) 6650-01-297-8003, or NIIN 012978003, (filter,light,interference) was assigned April 7, 1989 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. 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 9 different weapons systems.
There has been a small amount of 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 31, 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) 33094. [A LIGHT TRANSMITTING ITEM CONSISTING OF A TRANSPARENT, FLAT GLASS BODY HAVING TWO PLANE-PARALLEL SURFACES, EITHER WITH ONLY NONABSORBING DIELECTRIC COATINGS OR ABSORBING AND NONABSORBING COATINGS OF A THICKNESS NEARLY EQUIVALENT TO THE WAVELENGTH OF THE TRANSMITTED LIGHT. INTERFERENCE BEGINS AT THE THIN BORDERING SURFACES OF THE COATINGS, THE PENETRATING LIGHT WAVES BEING SUPERIMPOSED ON THE REFLECTED LIGHT WAVES. THE ITEM CAN BE INSTALLED IN VARIOUS OPTICAL INSTURMENTS, TO SERVE AS AN EYE PROTECTING DEVICE.]. 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 6650012978003 does not contain precious metals.
This NSN is associated to Schedule B 9018500000: other ophthalmic instruments and appliances and parts and accessories. The Schedule B End Use is listed as medicinal equipment. NAICS classification category 339112: surgical and medical instrument manufacturing.
This information was last updated on Jul 01, 2025.