National Stock Number (NSN) 4240-00-398-4186, or NIIN 003984186, (lens,helmet,sandblasters) was assigned April 15, 1974 in the Federal Logistics Information System (FLIS). This NSN replaces 2 stock numbers: 4240011830446, 4240014353307.
There are 5 manufacturer part numbers associated with this NSN. 4 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.
This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of Feb 17, 2016. There have been 24 contracts issued for this part number, with 22 awards given. There is moderate competition for this NSN. The US Government has awarded contracts to 6 different suppliers. The last contract numbers awarded were: SPE8EJ16M0165, SPE8EJ16M0165, SPE7L016M0752, SPE7L016M0752, SPE8EH15V0567. The total value of the awarded contracts has been US$ 147,294.53.
This NSN is unique to one weapons system.
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 May 02, 2006, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. This part is a commercial/non-developmental/off-the-shelf-item. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 77777. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no information in the HMIRS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product. NSN 4240003984186 does not contain precious metals.
This NSN is associated to Schedule B 6507000000: headbands, linings, covers, hat foundations, hat frames, peaks (visors) and chinstraps, for headgear. The Schedule B End Use is listed as apparel,household goods-nontextile.
This information was last updated on Jul 01, 2025.