National Stock Number
4220-00-431-6518
National Stock Number (NSN) 4220-00-431-6518, or NIIN 004316518, (swim fins) was assigned April 26, 1971 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 4220005774137.
There are 8 manufacturer part numbers associated with this NSN. 6 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 4 suppliers. Today, 3 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers are 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 Oct 11, 2011. 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: SPM8EH12V0057. The total value of the awarded contracts has been US$ 1,050.00.
This NSN is somewhat common among different platforms, belonging to 8 different weapons systems.
There has been a small amount of 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 Apr 25, 2008, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The annual buy value of this part falls below the screening threshold of $10,000 but it has been screened for known source(s). (NOTE: This code shall not be used when screening parts entering the inventory. It shall not be assigned in preference to or supersede any other AMSC.) Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 11043. [A PAIR OF ITEMS DESIGNED FOR ATTACHING TO THE FEET OF A PERSON FOR USE IN PROPELLING, BALANCING, AND GUIDING THE BODY IN WATER.]. 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 4220004316518 does not contain precious metals.
This NSN is associated to Schedule B 6406200000: parts of footwear, and similar articles, with outer soles and heels of rubber or plastics. The Schedule B End Use is listed as apparel,household goods-nontextile. NAICS classification category 326299: all other rubber product manufacturing.
This information was last updated on Aug 01, 2025.