National Stock Number
5977-00-391-3955
National Stock Number (NSN) 5977-00-391-3955, or NIIN 003913955, (holder,electrical contact brush) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 4 stock numbers: 5977003587280, 2920003607008, 5977005229927, 5977000971062.
There are 14 manufacturer part numbers associated with this NSN. 13 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 18 suppliers. Today, 12 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.
This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of Jun 25, 2020. There has been one contract issued for this part number, with one award given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE4A620PL038. The total value of the awarded contracts has been US$ 657.00.
There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on May 01, 2020, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. The data needed to produce this item from additional sources is not physically available. Valid AMCs: 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 02937. [A HOLDER DESIGNED TO ACCOMMODATE AND POSITION A BRUSH AGAINST A COMMUTATOR OR COLLECTOR RING. ALSO INCLUDES ITEMS CONSISTING OF TWO OR MORE BRUSH HOLDERS (BOXES) CAST AS AN INSEPARABLE UNIT. MAY INCLUDE FACILITIES FOR APPLYING PRESSURE TO THE BRUSH(ES) AND MAY ALSO BE FURNISHED WITH THE BRUSH(ES). SEE ALSO HOLDER ASSEMBLY, ELECTRICAL CONTACT BRUSH.]. 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 5977003913955 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.