National Stock Number
2640-01-017-4522
National Stock Number (NSN) 2640-01-017-4522, or NIIN 010174522, (flap,inner tube,pneumatic tire) was assigned March 7, 1976 in the Federal Logistics Information System (FLIS). NIIN 010174522 was cancelled on April 30, 2010, with a cancelled status of "Item is Cancelled - Inactive." There is no known replacement specified for this stock number. This NSN does not replace any other NSNs.
There are 3 manufacturer part numbers associated with this NSN. 2 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 3 suppliers. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, there are no suppliers that are deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 61787. [A ONE-PIECE OR SPLIT CIRCULAR ITEM MADE OF MOLDED RUBBER AND/OR FABRIC, DESIGNED FOR USE BETWEEN THE INNER TUBE AND RIM BEAD OF A PNEUMATIC TIRE TO PREVENT CHAFFING OR PINCHING OF THE INNER TUBE WHEN THE TIRE IS ASSEMBLED ON A WHEEL. EXCLUDES:RUBBER STRIP; RUBBER SHEET (AS MODIFIED); AND SEAL, RUBBER (AS MODIFIED).]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no information in the HMIRS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product. NSN 2640010174522 does not contain precious metals.
This information was last updated on Aug 01, 2025.