National Stock Number
5855-01-663-2188
National Stock Number (NSN) 5855-01-663-2188, or NIIN 016632188, (focusing ring,optical instrument) was assigned May 2, 2017 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, 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) 45552. [A CYLINDRICAL ITEM SPECIALLY DESIGNED TO MANUALLY ADJUST THE FOCUS ON AN OPTICAL INSTRUMENT. IT MAY HAVE AN INTERNAL THREAD MOUNTING METHOD OR MACHINED FOR A PRESS-FIT. IT USUALLY HAS A KNURLED PERIPHERY.]. 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 5855016632188 does not contain precious metals.
This NSN is associated to Schedule B 9014900000: parts & accessories for direction finding compasses and other navigational instruments and appliances. The Schedule B End Use is listed as marine engines, parts. NAICS classification category 334511: search, detection, navigation, guidance, aeronautical, and nautical system and instrument manufacturing.
This information was last updated on May 01, 2025.