National Stock Number
5355-99-126-1900
National Stock Number (NSN) 5355-99-126-1900, or NIIN 991261900, (mask,dial) has an unknown assigned date. 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, there are no suppliers that are deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years.
This NSN is unique to one weapons system.
This NSN is assigned to Item Name Code (INC) 09867. [AN ITEM SPECIFICALLY DESIGNED TO BE USED WITH A MULTISCALE DIAL OR SECTOR OF A MEASURING DEVICE TO LIMIT, OPEN OR CLOSE THE OBSERVATION OF THE SCALE (S), OR DIAL (S) DESIRED. IT IS USUALLY FLAT AND CONTAINS ONE OR MORE OBSERVATION SLOTS. IT MAY BE HINGED OR OTHERWISE MOVED BY ROTARY OR STRAIGHT-LINE MOTION TO EXPOSE THE SCALE OR SCALES REQUIRED FOR OBSERVATION.].
This information was last updated on Aug 15, 2025.