National Stock Number
1680-00-440-5697
National Stock Number (NSN) 1680-00-440-5697, or NIIN 004405697, (reel,shoulder harness,inertia lock) was assigned December 3, 1969 in the Federal Logistics Information System (FLIS). NIIN 004405697 was cancelled on September 2, 1997, with a cancelled status of "Item is Cancelled as Duplicate." This NSN was replaced by NSN 1680997177906. This NSN does not replace any other NSNs.
There are no manufacturer part numbers associated to this NSN.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 19338. [A ROTARY DEVICE DESIGNED TO BE INSTALLED IN AN AIRCRAFT TO AUTOMATICALLY CONTROL THE EXTENSION AND RETRACTION OF A SHOULDER HARNESS ATTACHMENT CABLE OR WEBBING. IT INCORPORATES AN INERTIA LOCKING MECHANISM THAT RESTRAINS THE FORWARD MOVEMENT OF FLIGHT PERSONNEL IN THE EVENT OF ABRUPT DECELERATION OF THE AIRCRAFT. IT MAY INCLUDE THE ATTACHMENT CABLE OR WEBBING AND THE MANUALLY OR ELECTRICALLY OPERATED CONTROLS.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 1680004405697 does not contain precious metals.
This information was last updated on Aug 01, 2025.