National Stock Number (NSN) 5342-00-391-9987, or NIIN 003919987, (mount,resilient,weapon system) 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 is only one manufacturer part number associated with this NSN. One of those 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 unique to one weapons system.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on May 02, 2005, this NSN's acquisition method was noted as: Acquire only from the prime contractor although the engineering data identifies the Commercial and Government Entity Code (CAGE) and part number of a source other than the prime contractor. The Government physically does not have in its possession sufficient, accurate, or legible data to purchase this part from other than current source(s). (NOTE: This code is applicable only to parts under immediate buy requirements and only as long as the deficiency is under review for resolution and appropriate recoding.) Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 53589. [AN ITEM MADE OF MATERIAL HAVING ELASTIC PROPERTIES. IT MAY HAVE RIGID MOUNTING FACILITIES SUCH AS A FLANGE(S), SLEEVE(S), STUD(S) OR THE LIKE. IT IS DESIGNED TO ISOLATE OR DAMPEN SHOCK AND/OR VIBRATION OF A CONTINUOUS OR INTERMITTENT ORIGIN AND SERVE AS A SUPPORT FOR A WEAPON SYSTEM COMPONENT TO BE ISOLATED. EXCLUDES MOUNT, RESILIENT, GENERAL PURPOSE; SPRING (AS MODIFIED); BUMPER, NONMETALLIC; BUMPER, RUBBER; BUSHING, NONMETALLIC; HYDRAULIC AND PNEUMATIC SHOCK ABSORBERS, DASH-POTS, GROMMETS, AND SHOCK PADS.]. 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 5342003919987 does not contain precious metals.
This NSN is associated to Schedule B 8710000090: parts of armored fighting vehicles,motorized, whether or not fitted with weapons. The Schedule B End Use is listed as military trucks, armored vehicles, etc.. NAICS classification category 336992: military armored vehicle, tank, and tank component manufacturing.
This information was last updated on Jul 01, 2025.