National Stock Number
6650-01-621-0636
National Stock Number (NSN) 6650-01-621-0636, or NIIN 016210636, (anti-reflection device,optical i) was assigned August 21, 2013 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There is only one manufacturer part number associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Aug 22, 2013, this NSN's acquisition method was noted as: Not established. Not established.
This NSN is assigned to Item Name Code (INC) 53357. [AN ITEM SPECIFICALLY DESIGNED TO BE PLACED OVER THE OPTICS TO PREVENT THE REFLECTION OF LIGHT OFF THE LENS OF ITEMS SUCH AS BINOCULARS, TELESCOPES FOR GUN SIGHTS, RIFLE AND OTHER WEAPON SIGHTS IN THE VISIBLE AND THERMAL RANGES, VISION BLOCKS AND LASER-PROTECTIVE GOGGLES. THE ITEM'S DESIGN OF A HONEYCOMB MATERIAL WITH SPECIAL ANTI-REFLECTION COATING PROVIDES PROTECTION FROM GLINT AND GLARE FROM OPTICAL SURFACES WITHOUT EFFECTING THE VIEW. THE ITEM MAY INCLUDE A FLIP-OPEN COVER DESIGNED TO PROTECT THE FILTER. PACKAGING COMPONENTS SUCH AS CARRYING BAG OR CASE, AND INSTRUCTION FOR INSTALLATION MAY ALSO BE INCLUDED.]. 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 6650016210636 does not contain precious metals.
This information was last updated on Aug 01, 2025.