National Stock Number
4931-00-554-9108
National Stock Number (NSN) 4931-00-554-9108, or NIIN 005549108, (collimator,telescope) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are no manufacturer part numbers associated to this NSN. ISO Group has several sources of supply for this NSN.
This part number has not been procured by the US Government in over a year. There have been 8 contracts issued for this part number, with 8 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 4 different suppliers. The last contract numbers awarded were: SPE4A724PB185, SPE4A618PK604, SPE4A618PK604, SPE4A617PC415, SPE4A617PC415. The total value of the awarded contracts has been US$ 118,329.00.
This NSN is somewhat common among different platforms, belonging to 4 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. The 24 month forecast from the US Government for this part number has high volatility, with an estimated forecasted value of US$ 9,112. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Dec 12, 2013, 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) 60233. [A SMALL, TUBULAR ITEM UTILIZING AN EYEPIECE, CROSS HAIR RETICLE, AND AN OBJECTIVE LENS, TO ALIGN THE OPTICAL AXIS TO THE MECHANICAL AXIS OF A TELESCOPIC INSTRUMENT. IT DOES NOT HAVE THE VIEWING POWER OF A TELESCOPE. IT MAY HAVE TWO LIKE ITEMS SECURED IN A COMMON HOLDER FOR SIMULTANEOUS CHECKING OF A DUAL OPTICAL SYSTEM.]. 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 4931005549108 does not contain precious metals.
This information was last updated on Aug 01, 2025.