National Stock Number
5977-01-189-1112
National Stock Number (NSN) 5977-01-189-1112, or NIIN 011891112, (slip ring assembly) was assigned September 11, 1984 in the Federal Logistics Information System (FLIS). NIIN 011891112 was cancelled on May 2, 2015, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 5977012256208. This NSN does not replace any other NSNs.
There are 2 manufacturer part numbers 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, 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.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Aug 01, 2020, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) Acquisition of this part is restricted to source(s) specified on "Source Control", "Altered Item" or "Selected Item" drawings/documents. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 77777. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 5977011891112 does not contain precious metals.
This information was last updated on Aug 01, 2025.