National Stock Number
1730-00-399-1288
National Stock Number (NSN) 1730-00-399-1288, or NIIN 003991288, (lock,aircraft ground safety) was assigned April 18, 1974 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. 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.
There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Sep 02, 2000, 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) 40337. [A LOCK DESIGNED TO PREVENT THE INADVERTENT MOVEMENT OR OPERATION OF COMPONENTS SUCH AS RUDDER PEDALS, HORIZONTAL STABILIZER, OLEO STRUT AND THE LIKE, DURNIG FLIGHTLINE MAINTENANCE.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 1730003991288 does not contain precious metals.
This information was last updated on Aug 01, 2025.