National Stock Number
5895-00-437-7258
National Stock Number (NSN) 5895-00-437-7258, or NIIN 004377258, (duplexer) was assigned September 10, 1969 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 2 suppliers. 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 Nov 03, 2020, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2.
This NSN is assigned to Item Name Code (INC) 00172. [AN ITEM WHICH PERMITS A TRANSMITTER AND RECEIVER TO OPERATE ON THE SAME FREQUENCY WITH A SINGLE TRANSMISSION LINE AND/OR ANTENNA. IT EFFECTS A MISMATCH IN THE RECEIVER SECTION WHEN THE TRANSMITTER IS OPERATING AND RESTORES MATCHING WHEN THE TRANSMITTER IS QUIESCENT. SEE ALSO BLANKER (AS MODIFIED); AND DIPLEXER.]. This item does not have a critical feature such as tolerance, fit restrictions or application. Nuclear hardness properties have not been determined (not valid for input). There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 5895004377258 does not contain precious metals.
This NSN is associated to Schedule B 9030908040: parts and accessories of articles of schedule b subheading 9030.40. The Schedule B End Use is listed as telecommunications equipment. NAICS classification category 334515: instrument manufacturing for measuring and testing electricity and electrical signals.
This information was last updated on Jul 01, 2025.