National Stock Number (NSN) 6605-00-551-8187, or NIIN 005518187, (compass,magnetic,mounted) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 7 stock numbers. Five of the National Stock Numbers that it replaces are: 6605006635621, 6605002398210, 6605006635933, 6605005802640, 6605006411293.
There are 15 manufacturer part numbers associated with this NSN. 8 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 7 suppliers. Today, 6 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 3 suppliers are deemed design controlled or valid supply parts. ISO Group has a strong supply network for this NSN, with 16 sources of supply.
This part number has not been procured by the US Government in over a year. There have been 11 contracts issued for this part number, with 29 awards given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE4A621F439N, SPE4A619F589U, SPE4A619F589U, SPE4A619F318Z, SPE4A619F318Z. The total value of the awarded contracts has been US$ 1,791,765.29.
This NSN is very common among different weapons systems, belonging to 45 different platforms.
There has been a small amount of demand for this national stock number. Globally, demand for this NSN has originated from 9 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jan 30, 2009, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) This part requires engineering source approval by the design control activity in order to maintain the quality of the part. An alternate source must qualify in accordance with the design control activity's procedures, as approved by the cognizant Government engineering activity. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 16206. [AN INSTRUMENT WHICH UTILIZES A MAGNETIC NEEDLE OR INDICATOR AND A GRADUATED DIAL OR CARD TO DETERMINE DIRECTION IN RELATION TO THE MAGNETIC NORTH. IT HAS PROVISIONS FOR MOUNTING IN A FIXED POSITION TO INSURE PROPER ALIGNMENT WHEN IN USE.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. Information is in the Hazardous Materials Information Resource System (HMIRS). NSN 6605005518187 does not contain precious metals.
This NSN is associated to Schedule B 9014900000: parts & accessories for direction finding compasses and other navigational instruments and appliances. The Schedule B End Use is listed as marine engines, parts. NAICS classification category 334511: search, detection, navigation, guidance, aeronautical, and nautical system and instrument manufacturing.
This information was last updated on Jul 01, 2025.