National Stock Number
4910-00-437-7215
National Stock Number (NSN) 4910-00-437-7215, or NIIN 004377215, (constrictor,bead expanding,pneum) was assigned September 3, 1969 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 4910012421370.
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 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, with the most recent procurement date of Nov 04, 2009. There has been one contract issued for this part number, with one award given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPM7L110V1429, SPM7L110V1429. The total value of the awarded contracts has been US$ 664.00.
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 02, 2005, 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 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) 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 4910004377215 contains an unknown precious metal.
This information was last updated on Jul 01, 2025.