National Stock Number (NSN) 1660-00-064-0340, or NIIN 000640340, (control box,electrical-electroni) was assigned June 22, 1967 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 1660009307615.
There are 4 manufacturer part numbers associated with this NSN. 2 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 4 suppliers. Today, 4 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts.
This part number has been procured by the US Government within the last year, but shows no recent (last 90 days) procurement activity. There have been 4 contracts issued for this part number, with 4 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 2 different suppliers. The last contract numbers awarded were: SPE4A624PY172, SPE4A524P7096, SPE4A714MC322, SPE4A714MB788. The total value of the awarded contracts has been US$ 211,955.00.
This NSN is somewhat common among different platforms, belonging to 3 different weapons systems.
There has been a small amount of 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 Jan 20, 2020, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) Acquisition of this part is restricted to source(s) specified on "Source Control", "Altered Item" or "Selected Item" drawings/documents. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 42426. [A METAL INCLOSURE WHICH INCLUDES MOUNTS AND PROTECTS ANY QUANTITY AND/OR COMBINATION OF ELECTRICAL/ELECTRONIC DEVICES SUCH AS RESISTORS, RELAYS, POTENTIOMETERS, RECEPTACLES, RECTIFIERS, BRIDGE NETWORKS AND THE LIKE. IF ELECTRICAL, IT MAY NOT CONTAIN ELECTRONIC TUBES AND/OR RESISTORS. IT MAY HAVE ADJUSTMENT CONTROLS. DESIGNED TO PRODUCE AN ELECTRICAL SIGNAL TO CONTROL AIR TEMPERATURE FOR AN AIRCRAFT CABIN, COCKPIT, WINDOW, WINDSHIELD AND OTHER COMPARMENTS FOR THE PURPOSE OF ANTI-ICING, DEFOGGING OR HEATING.]. 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 1660000640340 does not contain precious metals.
This NSN is associated to Schedule B 8803300060: other parts of airplanes or helicopters for use in military aircraft (excludes propellers, rotors, undercarriages, and parts thereof). The Schedule B End Use is listed as parts for military-type goods. NAICS classification category 336413: other aircraft parts and auxiliary equipment manufacturing.
This information was last updated on Jul 01, 2025.