National Stock Number
1270-00-552-6457
National Stock Number (NSN) 1270-00-552-6457, or NIIN 005526457, (cell assembly,optical instrument) was assigned October 27, 1974 in the Federal Logistics Information System (FLIS). NIIN 005526457 was cancelled on June 2, 2005, with a cancelled status of "Item is Cancelled WITHOUT Replacement." There is no known replacement specified for this stock number. 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, there are no suppliers 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 assigned to Item Name Code (INC) 22197. [AN ITEM CONSISTING OF A CELL, OPTICAL ELEMENT IN WHICH IS SECURED ONE OR MORE OPTICAL ELEMENTS, SUCH AS LENSES, RETICLES, FILTERS, WINDOWS, AND THE LIKE. MAY INCLUDE RETAINING RINGS, SPACERS, AND/OR SEPARATORS. FOR ITEMS WITH FOCUSING FACILITIES AND/OR A DIOPTER SCALE, SEE EYEPIECE ASSEMBLY, OPTICAL INSTRUMENT.]. This item does not have a critical feature such as tolerance, fit restrictions or application. Nuclear hardness properties have not been determined (not valid for input). There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 1270005526457 does not contain precious metals.
This information was last updated on Aug 01, 2025.