National Stock Number
5985-01-570-3173
National Stock Number (NSN) 5985-01-570-3173, or NIIN 015703173, (coupler,direct current blocking) was assigned December 22, 2008 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.
This NSN is assigned to Item Name Code (INC) 36153. [A COUPLER WHICH IS SPECIFICALLY DESIGNED TO BE INSERTED INTO A COAXIAL TRANSMISSION LINE TO PERMIT FLOW OF RADIO FREQUENCY ELECTRICAL ENERGY WHILE PREVENTING THE FLOW OF SIGNALS BELOW 20 KILOHERTZ (KILOCYCLES). IT CONSISTS OF A SHORT SECTION OF COAXIAL LINE WHICH HAS A CAPACITANCE IN SERIES WITH THE CENTER AND/OR OUTER CONDUCTOR. SEE ALSO COUPLER (1), DIRECT CURRENT SHORTING; COUPLER, DIRECTIONAL AND COUPLER (1), TRANSMISSION LINE.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no information in the HMIRS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product. NSN 5985015703173 does not contain precious metals.
This NSN is associated to Schedule B 8529109000: antenna & antenna reflectors of all kinds; parts suitable for use soley or principally w/ apparatus of heading 8525 to 8528, nesoi. The Schedule B End Use is listed as telecommunications equipment. NAICS classification category 334220: radio and television broadcasting and wireless communications equipment manufacturing.
This information was last updated on Jul 01, 2025.