National Stock Number
4910-01-242-1370
National Stock Number (NSN) 4910-01-242-1370, or NIIN 012421370, (constrictor,bead expanding,pneumatic tire) was assigned October 7, 1986 in the Federal Logistics Information System (FLIS). NIIN 012421370 was cancelled on December 2, 1996, with a cancelled status of "Item is Cancelled - USE." This NSN was replaced by NSN 4910004377215. This NSN does not replace any other NSNs.
There are no manufacturer part numbers associated to this NSN.
This part number has not been procured by the US Government in over 5 years.
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.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4910012421370 does not contain precious metals.
This information was last updated on Aug 01, 2025.