National Stock Number
5985-01-187-4392
National Stock Number (NSN) 5985-01-187-4392, or NIIN 011874392, (mixer,crystal,waveguide) was assigned August 22, 1984 in the Federal Logistics Information System (FLIS). NIIN 011874392 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 are 2 manufacturer part numbers associated with this NSN. None of the associated 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.
This NSN is assigned to Item Name Code (INC) 22971. [AN ITEM CONSISTING OF A WAVEGUIDE ASSEMBLY HAVING TWO FREQUENCY INPUTS, A CRYSTAL (ANY SEMICONDUCTOR DEVICE THAT PROVIDES RECTIFICATION) AND AN OUTPUT CONNECTION. IT IS EMPLOYED TO MIX TWO FREQUENCIES, WITH THE RESULTANT OUTPUT FREQUENCY BEING A COMPOSITE OF THE TWO INPUTS. FOR ITEMS WHICH ALSO UTILIZE ELECTRON TUBE(S), SEE MIXER STAGE, FREQUENCY. SEE ALSO MIXER, CRYSTAL, COAXIAL.]. 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 5985011874392 contains a combination of two or more precious metals (silver,gold, platinum).
This information was last updated on Jul 01, 2025.