National Stock Number
6640-01-354-9542
National Stock Number (NSN) 6640-01-354-9542, or NIIN 013549542, (filter unit,microporous) was assigned March 9, 1992 in the Federal Logistics Information System (FLIS). NIIN 013549542 was cancelled on May 1, 2010, with a cancelled status of "Item is Cancelled - Inactive." There is no known replacement specified for this stock number. This NSN does not replace any other NSNs.
There are 5 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 2 suppliers. 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.
This NSN is assigned to Item Name Code (INC) 41087. [AN ITEM DESIGNED TO HOLD A DISK, FILTERING, MICROPOROUS SO THAT WHEN AIR, GASSES OR FLUIDS PASS THROUGH, CONTAMINANTS ARE LEFT ON THE SURFACE OF THE FILTERING DISK.]. 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 6640013549542 does not contain precious metals.
This information was last updated on Jul 01, 2025.