National Stock Number
5965-00-566-4221
National Stock Number (NSN) 5965-00-566-4221, or NIIN 005664221, (adapter,headset-microphone) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 2 stock numbers: 5965007101312, 5965003247329.
There are 4 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 6 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers are 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) 15836. [AN ADAPTER DESIGNED TO CONNECT TWO OR MORE ITEMS, ONE OR BOTH BEING A HEADSET-MICROPHONE WHOSE DESIGN OR FUNCTION WILL NOT NORMALLY WARRANT THEIR CONNECTION. EXCLUDES ADAPTER, CONNECTOR.]. 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 5965005664221 does not contain precious metals.
This NSN is associated to Schedule B 8518903000: microphone parts, loudspeaker parts, amplifier parts & headphone parts. The Schedule B End Use is listed as telecommunications equipment. NAICS classification category 334310: audio and video equipment manufacturing.
This information was last updated on Aug 01, 2025.