National Stock Number
5977-00-444-5906
National Stock Number (NSN) 5977-00-444-5906, or NIIN 004445906, (ring,electrical contact) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 5826007977855.
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 2 suppliers. Today, 2 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 very common among different weapons systems, belonging to 29 different platforms.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on May 02, 2005, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. This part requires engineering source approval by the design control activity in order to maintain the quality of the part. An alternate source must qualify in accordance with the design control activity's procedures, as approved by the cognizant Government engineering activity. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 02474. [AN ITEM CONSISTING OF A CONTINUOUS ELECTRICALLY CONDUCTIVE MATERIAL OF CIRCULAR OR RING SHAPE SPECIFICALLY DESIGNED TO BE USED IN CONJUNCTION WITH A CONTACT BRUSH TO ESTABLISH AN ELECTRICAL CIRCUIT BETWEEN A ROTATING ITEM AND A STATIONARY ITEM. SEE ALSO COMMUTATOR.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 5977004445906 does not contain precious metals.
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.