National Stock Number
4940-01-109-6557
National Stock Number (NSN) 4940-01-109-6557, or NIIN 011096557, (enclosure,electromagnetic shield) was assigned March 19, 1981 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. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. 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.
This NSN is assigned to Item Name Code (INC) 20361. [A PREFABRICATED AND/OR DEMOUNTABLE STRUCTURE DESIGNED TO ENCOMPASS ELECTRICAL APPARATUS AND PERSONNEL FOR THE PURPOSE OF SHIELDING AGAINST ELECTROMAGNETIC OR MECHANICAL INTERFERENCE. FOR ITEMS THAT DO NOT ENCOMPASS PERSONNEL, SEE SHIELD, TEST.]. 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 4940011096557 does not contain precious metals.
This information was last updated on Jun 01, 2025.