National Stock Number
5342-01-220-2421
National Stock Number (NSN) 5342-01-220-2421, or NIIN 012202421, (mount,resilient,weapon system) was assigned November 9, 1985 in the Federal Logistics Information System (FLIS). NIIN 012202421 was cancelled on July 2, 2017, with a cancelled status of "Item is Cancelled WITHOUT Replacement." 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. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. 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.
There has been very little 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 Sep 08, 2020, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. The cost to the Government to breakout this part and acquire it competitively has been determined to exceed the projected savings over the life span of the part. 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 5342012202421 does not contain precious metals.
This information was last updated on Jul 01, 2025.