National Stock Number
5977-00-490-9950
National Stock Number (NSN) 5977-00-490-9950, or NIIN 004909950, (ring assembly,electrical contact) was assigned March 14, 1972 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 2 manufacturer part numbers associated with this NSN. One 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, 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 Sep 26, 2010, 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) 00313. [TWO OR MORE ELECTRICAL CONTACT RINGS ON A COMMON MOUNTING OR MOUNTED ON EACH OTHER. MAY INCLUDE CONTACTS, INTEGRAL BRUSHES, BRUSH HOLDER ASSEMBLIES, AND CONNECTORS.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 5977004909950 contains an unknown precious metal.
This NSN is associated to Schedule B 8545900000: electrical carbon or graphite articles,nesoi. The Schedule B End Use is listed as electric apparatus. NAICS classification category 335991: carbon and graphite product manufacturing.
This information was last updated on Aug 01, 2025.