National Stock Number
4730-01-156-4920
National Stock Number (NSN) 4730-01-156-4920, or NIIN 011564920, (spacer,flexible,pipeline) was assigned June 21, 1983 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 4 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. 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.
This NSN is somewhat common among different platforms, belonging to 3 different weapons systems.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Dec 10, 2014, 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 data needed to produce this item from additional sources is not physically available. Valid AMCs: 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 17666. [AN ITEM MADE FROM RUBBER IN VARIOUS SHAPES, FLANGED ON EACH END, AND HAVING A CENTRALLY LOCATED HOLE OF THE SAME SIZE AS THE PIPING WITH WHICH USED. IT IS DESIGNED TO BE INSERTED BETWEEN SECTIONS OF PIPE OR PIPE AND CASING OF FANS, PUMPS, OR THE LIKE, TO ABSORB SHOCK, DAMPEN VIBRATION AND TO FACILITATE REMOVAL OF SECTION(S) FOR REPAIR OR OTHER PURPOSES.]. 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 4730011564920 does not contain precious metals.
This information was last updated on May 01, 2025.