National Stock Number
6635-00-557-5916
National Stock Number (NSN) 6635-00-557-5916, or NIIN 005575916, (magnetic inspection unit,station) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 2 stock numbers: 6635005754640, 6635008336492.
There are 9 manufacturer part numbers associated with this NSN. 6 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 3 suppliers. Today, 3 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers 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) 19005. [A UNIT DESIGNED FOR INSPECTING MAGNETIC METAL PART(S) FOR SURFACE OR NEAR SURFACE DEFECTS, BY SETTING UP A SUITABLE MAGNETIC FIELD WITHIN THE PART(S) TO BE INSPECTED. ANY SUDDEN INTERRUPTIONS TO THIS MAGNETIC FIELD INDICATES BY MAGNETIC PARTICLES THE EXACT EXTENT AND LOCATION OF THE DEFECT.]. 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 6635005575916 does not contain precious metals.
This NSN is associated to Schedule B 9027803500: physical analysis instruments and apparatus, except using optical radiations, nesoi. The Schedule B End Use is listed as laboratory testing instruments. NAICS classification category 334516: analytical laboratory instrument manufacturing.
This information was last updated on Aug 01, 2025.