NSN 5977-00-543-8839, 5977005438839
RING ASSEMBLY,ELECTRICAL CONTACT

Federal Supply Classification: FSC 5977 - Electrical Contact Brushes and Electrodes
National Item Identification Number: NIIN 005438839
Codification Country: United States
Item Name Code: INC 00313
Criticality: (X) This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Hazardous Material Indicator Code: (N) There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials.

Availability: Readily Available Qualified Suppliers: Currently qualifying suppliers

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DLMS^® Summary

National Stock Number 5977-00-543-8839

National Stock Number (NSN) 5977-00-543-8839, or NIIN 005438839, (ring assembly,electrical contact) was assigned January 1, 1963 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. 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 May 02, 2005, this NSN's acquisition method was noted as: Acquire, for the first time, directly from the actual manufacturer rather than the prime contractor who is not the actual manufacturer. The data or the rights to use the data needed to purchase this part from additional sources are not owned by the Government and it has been determined that it is uneconomical to purchase them. 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.]. 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 5977005438839 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.