National Stock Number
5985-01-437-9733
National Stock Number (NSN) 5985-01-437-9733, or NIIN 014379733, (isolator,radio frequency reflection) was assigned October 28, 1996 in the Federal Logistics Information System (FLIS). NIIN 014379733 was cancelled on December 15, 2017, with a cancelled status of "Item is Cancelled - Inactive." There is no known replacement specified for this stock number. 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) 20347. [A DEVICE WHICH ALLOWS RADIO FREQUENCY ENERGY TO PASS IN ONE DIRECTION WITH VERY LITTLE POWER LOSS, BUT BLOCKS THE FLOW OF ENERGY IN THE OTHER DIRECTION BY MEANS OF MULTIPLE WAVE-POLARIZATION OR AN INTEGRAL DISSIPATIVE LOAD. IT ISOLATES FREQUENCY SENSITIVE CIRCUITY FROM THE EFFECTS OF REFLECTED RADIO FREQUENCY ENERGY RESULTING FROM COMPONENT MISMATCH. IT USUALLY HAS ONE OR MORE PORTS TERMINATED WITH COAXIAL CONNECTOR(S) AND/OR WAVEGUIDE FLANGE(S); OR OTHER ELECTRICAL TERMINATIONS. ISOLATORS DESIGNED FOR INTERNAL USE IN WAVEGUIDE RUNS MAY CONSIST OF RODS, RINGS, CHIPS, STRIPS AND THE LIKE AND HAVE NO PORTS OR TERMINATIONS. SEE ALSO DIPLEXER; DUPLEXER. EXCLUDES:CIRCULATOR, RADIO FREQUENCY.]. 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 5985014379733 does not contain precious metals.
This information was last updated on Jul 01, 2025.