National Stock Number
5640-01-399-1734
National Stock Number (NSN) 5640-01-399-1734, or NIIN 013991734, (sound controlling batt) was assigned November 18, 1994 in the Federal Logistics Information System (FLIS). NIIN 013991734 was cancelled on December 15, 2017, 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 2 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, 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.
This part number has not been procured by the US Government in over 5 years.
This NSN is unique to one weapons system.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jun 27, 2020, this NSN's acquisition method was noted as: Not established. Not established.
This NSN is assigned to Item Name Code (INC) 20233. [A MATERIAL COMPOSED OF ONE OR MORE KINDS OF FIBER WITHOUT BINDER ADDED, MANUFACTURED IN FLAT SHEETS OR ROLLS. IT IS DESIGNED TO ENTRAP AND DISSIPATE SOUND ENERGY, AND MUST BE RATED FOR THIS USE.]. 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 5640013991734 does not contain precious metals.
This information was last updated on Jul 01, 2025.