National Stock Number
4910-01-132-4933
National Stock Number (NSN) 4910-01-132-4933, or NIIN 011324933, (constrictor,bead expanding,pneum) was assigned May 30, 1982 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. 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 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 unique to one weapons system.
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 Nov 22, 2012, 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 or the rights to use the data needed to purchase this part from additional sources are not owned by the Government and it has been determined that it is uneconomical to purchase them. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 20937. [A DEVICE USED TO APPLY PRESSURE ABOUT THE TREAD CIRCUMFERENCE OF A TUBELESS PNEUMATIC TIRE, CAUSING THE TIRE BEADS TO EXPAND AGAINST THE WHEEL RIM TO FORM AN AIRTIGHT SEAL. IT CONSISTS OF EITHER AN AIR, HYDRAULIC, SCREW, OR FRICTION FORCE CONTRACTED BAND, OR OF A CONFINED, INFLATABLE, CIRCULAR TUBE, INSIDE WHICH THE TIRE IS PLACED FOR APPLICATION OF PRESSURE.]. 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 4910011324933 does not contain precious metals.
This information was last updated on Aug 01, 2025.