Explore National Stock Number (NSN) Database

National Stock Numbers (NSN) are thirteen-digit identifier codes used by all members of the North Atlantic Treaty Organization. Methodical Purchasing, an ASAP Semiconductor owned and operated website, we use National Stock Numbers (NSN) to make it easy for our customers to browse through our vast inventory of over six billion parts, including 1420-00-953-9933, 1210-00-177-9594, 1210-00-152-6746, 1240-01-061-4259, 1210-00-159-4796. No matter what you’re looking for, ASAP is sure to have the right NSN in stock and ready to ship. If you need help with your National Stock Number (NSN) parts procurement process, our dedicated account managers can help create a customized solution for you, whether you need obsolete parts or face an aircraft on ground situation.